| 单词 | auricle |
| 例句 | The large, fleshy structure on the lateral aspect of the head is known as the auricle. Anatomy and Physiology 2013-06-19T00:00:00Z Transmission in External Ear.—The external ear consists of the pinna, or auricle, and the external auditory meatus, or canal, at the bottom of which we find the membrana tympani, or drum head. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Mostly stiff, with short erect closely flowered spikes, an entirely staminate terminal spike, dark colored scales, and bracts with purple or black auricles at base; stigmas 2 or 3.—Sp. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Even after twelve hours both auricles responded to the same stimulus, though the ventricles remained motionless. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z Having two auricles, as the heart of mammals, birds, and reptiles. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z The auricle, ear canal, and tympanic membrane are often referred to as the external ear. Anatomy and Physiology 2013-06-19T00:00:00Z In many animals the auricle is trumpet-shaped, and, being freely movable by muscles, serves to collect sonorous waves coming from various directions. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z L. Dràba, L. Perennial, obscurely hoary; leaves oval or oblong, the upper with broad clasping auricles; flowers corymbose; pods heart-shaped, wingless, thickish, entire, tipped with a conspicuous style.—Astoria, near New York, D. C. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The blood is received from the veins of the body in the right auricle, from which it passes through a tabular opening into the right ventricle, and is thence driven into the lungs. Sheep, Swine, and Poultry Embracing the History and Varieties of Each; The Best Modes of Breeding; Their Feeding and Management; Together with etc. 2012-03-21T02:00:35.167Z Decolorized clots in heart, extending from ventricles into auricles of both sides. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Figure 14.5 Structures of the Ear The external ear contains the auricle, ear canal, and tympanic membrane. Anatomy and Physiology 2013-06-19T00:00:00Z One small vein, called the oblique vein of Marshall, runs down into it across the posterior surface of the auricle, from below the left lower pulmonary vein, and is of morphological interest. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Column very small, terete, with 2 teeth or auricles at the summit and the erect anther between them. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z From these organs it returns through the pulmonary veins into the left auricle, and passes thence into the ventricles of the same side, by the contraction of which it is driven into the aorta. Sheep, Swine, and Poultry Embracing the History and Varieties of Each; The Best Modes of Breeding; Their Feeding and Management; Together with etc. 2012-03-21T02:00:35.167Z Clots in the left ventricle are sometimes prolonged into the aorta as far as the brachio-cephalic branches, while those in the left auricle may extend to the pulmonary veins. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z The primitive atrium becomes the anterior portions of both the right and left atria, and the two auricles. Anatomy and Physiology 2013-06-19T00:00:00Z The fate of the sinus venosus and auricle must now be followed. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Vena, vē′na, n. a vein.—Vena cava, the largest vein in the body, entering the right auricle of the heart. Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) 2012-01-30T03:00:19.113Z Pinna, pin′a, n. a single leaflet of a pinnate leaf: a wing, fin, or the like: the auricle of the ear:—pl. Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) 2012-01-30T03:00:13.887Z Having passed through its proper vessels, it accumulates in the left auricle. The American Reformed Cattle Doctor 2011-11-14T03:00:19.813Z The left atrium does not have pectinate muscles except in the auricle. Anatomy and Physiology 2013-06-19T00:00:00Z The general scheme is that there are superficial fibres common to the two auricles and two ventricles and deeper fibres for each cavity. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z If the upper, sino-auricular, node is damaged, or if its impulses fail to get across the wall of the auricle, Tawara's node acts in its place to start off the ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Order I. Aspidobranchia.—These are the most primitive Gastropods, retaining to a great degree the original symmetry of the organs of the pallial complex, having two kidneys, in some cases two branchiae, and two auricles. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The auricle on the left side of the heart receives the blood that has been distributed through the lungs for purification. The American Reformed Cattle Doctor 2011-11-14T03:00:19.813Z Its action consists of a first and a second sound, covering the contraction of right and left auricles and ventricles, and then a rest,—and so far as we know a perfect one. Insanity Its Causes and Prevention 2011-08-29T02:01:05.400Z Between the auricle and ventricle is the auriculo-ventricular valve, which primarily consists of two cusps, comparable to the two endocardial cushions of the human embryo, though in some forms they may be subdivided. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Its greatest value is in states of abnormal conductivity, such as various grades of heart block, extrasystoles, whether originating in auricles or in either ventricle, abnormalities of rhythm, as flutter and fibrillation. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Heart has only a single auricle, neither heart nor pericardium traversed by rectum. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Where the veins terminate in auricles, there are valves placed, to prevent the blood from returning. The American Reformed Cattle Doctor 2011-11-14T03:00:19.813Z This cervical auricle has all the characters of the ordinary ear, “it contains yellow elastic cartilage, is skin-covered, and has muscle-fibre attached to it.” McClure's Magazine, Vol. 1, No. 1 2011-07-17T02:00:36.813Z Structurally the amphibian heart closely resembles the dipnoan, though the increased size of the left auricle is an advance. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z In the former there are ventricular silences, during which the auricles beat two, three, four, five, even up to nine times, with only one ventricular contraction. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Heart with two auricles; ventricle traversed by the rectum, except in the Helicinidae. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z But had I only been as sensible and felt as much in the very forenoon, and had I only, before dinner, shown forth something of my heart, an auricle, a fibre. The Invisible Lodge 2011-06-09T02:00:19.470Z A small kind known as ear-cornets or acoustic auricles, attached to the ear by a spring, is sometimes used in slight cases of deafness. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z The sinus venosus is largely included in the right auricle, but remains of the two venous valves are seen on each side of the orifice of the inferior vena cava. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Then, if the endocardium is removed from the posterior part of the septum of the auricle up to the membranous septum, the posterior part of the auriculoventricular bundle will be exposed. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z No ctenidium, but a pulmonary cavity; heart with a single auricle, not traversed by the rectum. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Its function is to force the venous blood through the pulmonary veins to the right auricle; thence to be distributed over the body. First Person Paramount 2011-04-07T02:00:19.233Z The heart has two auricles instead of one only, as in all other fishes. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z Each ventricle holds about 4 f. oz. of blood, and each auricle rather less. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Even when the heart block is complete, stimulation of the accelerator nerve, as a rule, increases the rate of both auricles and ventricles. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The heart lying within the adjacent pericardium has the usual form, a single auricle and ventricle. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z These so-called auricles are in fact organs of the same kind as the larger lobes, though less developed. Seaside Studies in Natural History Marine Animals of Massachusetts Bay. Radiates. 2011-03-07T03:00:13.343Z Ve' na ca' va, a large vein emptying into the right auricle of the heart. A Guide for the Study of Animals 2011-01-18T03:00:14.913Z It will now be seen why, in the adult heart, all the veins which open into the right auricle open into its posterior part, behind the crista terminalis. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z It has been definitely determined that the impulse to cardiac contraction originates in the sinus node, a collection of differentiated nerve cells situated at the junction of the superior vena cava with the right auricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z There are four crisped auricles, or feelers, between them. Lachesis Lapponica A Tour in Lapland, Volume 1 2010-12-31T03:00:11.350Z The four longest ones are opposite each other on those sides of the body where the larger lobes are developed, the four short ones being in pairs on the sides where the auricles are placed. Seaside Studies in Natural History Marine Animals of Massachusetts Bay. Radiates. 2011-03-07T03:00:13.343Z It enters and fills the right auricle during its dilatation: the auricle then contracts and fills the right ventricle. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers The absence of the auricle, as the result of accident or injury, does not cause diminution of hearing. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z In this condition the auricle is widely dilated and over its surface are countless twitchings of individual muscles giving to the auricle the appearance of a squirming bunch of worms. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z In certain species the heart has only a single cavity, with a single auricle, the blood red but cold; of these the amphibia have a voluntary respiration, while fishes respire by gills. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Young Bolina seen from the broad side, with rudimentary auricles and lobes; magnified. Seaside Studies in Natural History Marine Animals of Massachusetts Bay. Radiates. 2011-03-07T03:00:13.343Z Secondly, having completed the circuit of the lungs, the pure and bright arterial blood enters the left auricle. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers The left auricle is situated at the back of the base of the heart, behind and to the left of the right auricle. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Such a condition may be readily produced in a dog's exposed heart by direct faradization of the auricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z As time advances we find the perfect heart, with its two ventricles and two auricles, all developed from the original straight artery. What a Young Husband Ought to Know But as their development goes on, the tentacles stretch out into longer, more delicate flexible organs, while the auricles remain short and compact throughout life. Seaside Studies in Natural History Marine Animals of Massachusetts Bay. Radiates. 2011-03-07T03:00:13.343Z Thus, when the auricle contracts, the inlet valve opens; but as soon as the ventricle begins to contract, it closes promptly. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers On the septal wall is a small depression like the mark of a finger-nail, which corresponds to the anterior part of the fossa ovalis and often forms a valvular communication with the right auricle. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z It should be seen by every physician in order fully to appreciate the passive, dilated sac part which the auricle plays when in such a state. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Auriculate, furnished with auricles or ear-like appendages, 53. The Elements of Botany For Beginners and For Schools They did not clearly distinguish between the life and the soul, but said that the right auricle of the heart was the seat of life. The Belief in Immortality and the Worship of the Dead Vol. II An auricle and a ventricle on the same side, communicate with each other, but there is no opening from side to side. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers In relation to human embryology the smooth sinus venosus and reticulated auricle are interesting. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Ventricular fibrillation as its name implies, is fibrillation of the ventricle analogous to that of the auricle, but the condition is rarely observed as it is incompatible with life. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z From each gill-plume the blood passes by the branchial efferent vessels to the heart, the two auricles being formed by the dilatation of these vessels. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" I'd like to know about that right auricle of his heart. The Bramleighs of Bishop's Folly If we examine the heart, we at once notice that though its various chambers have about the same capacity, the walls of the ventricles are thicker and stronger than those of the auricles. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers The auricle of the human ear presents many irregularities of surface. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z The extrasystole may have its origin in either the auricle or the ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The auricles, one pair, are contractile expansions of the efferent branchial vessels. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" As time advances we find the perfect heart with its two ventricles and two auricles, all developed from the original straight artery. Plain Talks on Avoided Subjects The auricles, on the contrary, need much less power, for they simply discharge their contents into the cavities of the heart near at hand and below them—into the ventricles. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers When waves of sound strike the auricle, they are partly reflected outwards, while the remainder, impinging at various angles, undergo a number of reflections so as to be directed into the auditory canal. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z We may define heart block as the condition in which the auricles and ventricles beat independently of each other. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The most remarkable feature presented by the heart of Nautilus is the possession of four instead of two auricles, a feature which is simply related to the metamerism of the branchiae. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The two upper ones are called auricles and the lower ones are named ventricles. Health Lessons Book 1 What can you state of the ventricles and auricles of the heart? A Treatise on Physiology and Hygiene For Educational Institutions and General Readers The right auricle is situated at the base of the heart, and its outline is seen on looking at the organ from in front. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z One branch passes into the superficial part of the valve musculature which descends from the auricles, and the other branch passes directly into the musculature of the auricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Heart and Vascular System.—The heart is enclosed in the pericardium, and consists of a median elongated ventricle and a pair of lateral auricles, so that the structure somewhat resembles that in the Lamellibranchiata. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" The blood enters the auricles and then pours through an opening into each ventricle, from which it passes out into the arteries. Health Lessons Book 1 Between the auricle and ventricle in the right side of the heart, there are three folds, or doublings, of thin, triangular membrane, called the tri-cus´pid valves. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) When the auricle is opened by turning the front wall to the right as a flap the following structures are exposed: 1. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z It has also been shown that the independent auricular and ventricular rates vary somewhat, that of the auricle being in general faster than that of the ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The openings of the auricles into the ventricle vary in different forms. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" The upper compartments are called auricles and the lower ones ventricles. Special Report on Diseases of Cattle Between the auricle and ventricle in the left side, there are two valves, called the mi´tral. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Carbon dioxide still exhales up through your lungs, but the vein back to the left auricle is routed through the carburetor and supercharged with oxygen. Sjambak By measuring the height of the vein above the heart some idea may be obtained of the pressure within the right auricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The auricles are connected with one another posteriorly behind the ventricle. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" At the bottom of each auricle is the auriculo-ventricular opening, each provided with a valve to close it when the heart contracts to force the blood into the arteries. Special Report on Diseases of Cattle What is found between the auricle and ventricle in the right side of the heart? A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) These are respectively known as the right and left auricles, and the right and left ventricles. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use Its cause is found in the passage of the blood from the auricle into the ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The oxygenated blood is carried from each gill by an efferent vessel on the external or pallial side of the axis to another longitudinal vessel which leads to the auricle on each side. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" The valves of the heart, situated between the right auricle and ventricle, and left auricle and ventricle, and between the ventricles and large arteries, are represented by curved lines. Special Report on Diseases of Cattle The ventricles contract quicker and more forcibly than the auricles, and they are three times longer in dilating than contracting. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Between each auricle and its ventricle is a valve, which consists of strong membranous flaps, with loose edges turned downwards. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use Deformities.—The auricle, together with the external auditory meatus, may be congenitally absent on one or on both sides. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Every organ of the body is double; in the pulsations of the heart a double machinery is used, there is a double auricle and a double ventricle. History of Woman Suffrage, Volume I The walls of the ventricles are thicker than those of the auricles, and the walls of the left ventricle are much thicker than those of the right. Special Report on Diseases of Cattle The valves in the heart permit the blood to flow from the auricles to the ventricles, but prevent its reflowing. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) They are arranged in two pairs, the auricle uppermost, separated by a fleshy partition. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use Abnormally large ears may be diminished in size by the removal of a V-shaped portion from the upper part of the auricle. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. There are likewise valves between the auricles and ventricles, which permit the blood to flow from the former into the latter, but prevent its return into the auricles. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease The auricles may be considered as the reservoirs or receivers of the blood and the ventricles as the pump chambers. Special Report on Diseases of Cattle How do the auricles and ventricles contract and dilate? A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) It returns to the left auricle through the pulmonary veins; enters the left auricle, passes to left ventricle, and so on. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use Epithelioma may attack the auricle and extend along the external auditory meatus. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. As soon as they have finished their contraction, they relax, till they are again filled with blood from the auricles, and this state of relaxation of the heart, is called the diastole. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease The right auricle and ventricle are completely separated from the left auricle and ventricle by a thick septum or wall, so that there is no communication between the right and left sides of the organ. Special Report on Diseases of Cattle Describe the course of the blood from the right auricle in the heart to the lungs. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) The left-side valve is the mitral valve, that between the right auricle and ventricle the tricuspid valve. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use A more or less tense fluctuating swelling forms on the anterior surface of the auricle, presenting in some cases a distinctly bluish coloration. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. The right auricle and ventricle were large, and their parietes thin. Cases of Organic Diseases of the Heart In the heart itself two distinct motions are observed—first of the auricles, and then of the ventricles. Fathers of Biology Describe the circulation of the blood from the left auricle to the general system. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Such outgrowths are called auricles or auricular outgrowths. A Handbook of Some South Indian Grasses The ear should be turned to the light, a towel placed over the patient's dress, and a kidney basin held under the auricle and close to the cheek. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Its cavities were filled with black coagulum, which in the right auricle and ventricle had a slight appearance of polypus. Cases of Organic Diseases of the Heart A connoisseur meticulous, He found her that ridiculous He grinned from ear to auricle until he split his lip! The Book of Humorous Verse D, The opening between the right auricle and right ventricle. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) The leaf-sheath is glabrous, loose and compressed, with a membranous auricle confluent with the truncate ligule. A Handbook of Some South Indian Grasses The term cervical auricles is applied to small outgrowths, composed of skin, connective tissue, and yellow elastic cartilage, found usually along the anterior border of the sterno-mastoid. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. That of the left ventricle was disproportionately larger than the others, but no difference of size could be ascertained between the auricles. Cases of Organic Diseases of the Heart None of all this ever drips into my auricles in Holland. The Parthenon By Way Of Papendrecht H, The opening between the left auricle and left ventricle. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) The first glume is somewhat fiddle-shaped, dilated above the middle into an orbicular wing, and towards the base into two auricles joined by a transverse ridge, scaberulous, 5-nerved. A Handbook of Some South Indian Grasses The canal forms a curved tube, which can be straightened to a considerable extent for purposes of examination by pulling the auricle upwards and backwards. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. The left auricle was double the usual size. Cases of Organic Diseases of the Heart Thus there are four cardiac cavities—the superior, or upper, ones called the auricles; the inferior, or lower, ones the ventricles. Special Report on Diseases of the Horse The parcel contained silver spoons, forks, a pair of gold auricles, all unquestionably the property of the unfortunate nobleman; and the only question remaining was, whether Courvoisier was the person who had so left it. An Essay on Professional Ethics Second Edition There was considerable attenuation of the walls of both auricles and ventricles. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners The pain associated with a boil in the external meatus is usually aggravated by movements of the jaw, by pulling the auricle, and by pressure upon the tragus. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. The parietes of the left auricle and ventricle, particularly of the latter, were much thickened, and their cavities were filled with black coagulum. Cases of Organic Diseases of the Heart The auricles are thin-walled cavities placed at the base, and are connected with the great veins—the venæ cavæ and pulmonary veins—through which they receive blood from all parts of the body. Special Report on Diseases of the Horse In the preceding figure, H, is the heart, which is divided into four compartments; two, called auricles, used for receiving the blood, and two, called ventricles, used for sending out the blood. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School The substance of the heart, in all the cases, was soft and attenuated; the right auricle and ventricle were dilated; and there was thickening of several of the valves. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners Eczema of the external meatus is often associated with eczema of the auricle and of the surrounding parts. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. In the right auricle, and ventricle, was some coagulated blood. Cases of Organic Diseases of the Heart The veins emptying into the auricles are not capable of closure, but the posterior vena cava has an imperfect valve at its aperture. Special Report on Diseases of the Horse The heart, in man, and in all warm-blooded animals, is double, having two auricles and two ventricles. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School The right auricle and ventricle were dilated considerably. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners But, as a matter of fact, the ventricles in fowl and rabbit are separated first, and the separation of the auricles follows, and is barely complete at birth. Text Book of Biology, Part 1: Vertebrata The left auricle and ventricle, particularly the first, contained coagulum. Cases of Organic Diseases of the Heart The circulation through the heart is as follows: The venous blood is carried into the right auricle by the anterior and posterior venæ cavæ. Special Report on Diseases of the Horse B, is the right sinus, or auricle, into which the returned blood is poured. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School Both auricle and ventricle on the left side of the heart contained a deep-dark blood. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners Hence the pulmonary arteries yawn nearest for the blood, and, being short, wide vessels, present the least resistance to the first rush of blood-- mainly venous blood for the right auricle. Text Book of Biology, Part 1: Vertebrata In this patient both auricle and ventricle were scored externally by the passage of the bullet. Surgical Experiences in South Africa, 1899-1900 Being Mainly a Clinical Study of the Nature and Effects of Injuries Produced by Bullets of Small Calibre The contraction of the auricles is quickly followed by that of the ventricles, and then a slight pause occurs; this takes place in regular rhythmical order during health. Special Report on Diseases of the Horse Pulmonary artery, an artery which passes through the lungs, being divided into several branches, which form a beautiful network over the air-vessels, and finally empty themselves into the left auricle of the heart. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School Both auricles of the heart were enlarged, and distended with exceedingly dark blood. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners Summarising the course of the circulation, starting from the right ventricle, we have-- pulmonary artery, pulmonary capillaries, pulmonary vein, left auricle, left ventricle, aorta, arteries, and systemic capillaries. Text Book of Biology, Part 1: Vertebrata Beside them could be seen other elevated objects of auricle shape, set in rows or circles like a festooning of child peppers strung up for preservation. The Lone Ranche They are usually found in the right auricle and ventricle. Special Report on Diseases of the Horse At the end of the fourth day the auricle becomes divided into two, affording a parallel with the adult heart of many reptiles. Form and Function A Contribution to the History of Animal Morphology The valvular structure of the auricles was congested and granular. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners After this, from all parts except the spleen and alimentary canal, the blood returns to systemic veins, superior or inferior cavae, right auricle, and right ventricle. Text Book of Biology, Part 1: Vertebrata And another set of valves has grown up between the auricle and the ventricle on each side of the heart. A Handbook of Health The left bronchus may be stenosed by pressure from a hypertrophied cardiac auricle. Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery A little later three chambers are developed, the auricle, ventricle, and aortic bulb; at this stage there is a resemblance to the heart of fish and amphibia. Form and Function A Contribution to the History of Animal Morphology The right auricle was much dilated, and its walls exceedingly thin. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners The course of the blood in the embryo is by the veins to the right auricle, thence through the imperfection of the auricular septum already alluded to, into the left auricle. Text Book of Biology, Part 1: Vertebrata Either of the two large veins discharging into the right auricle of the heart. A Handbook of Health Compression by the enlarged left auricle has been observed a number of times. Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery The upper cavities are called auricles and the lower ones ventricles. Physiology and Hygiene for Secondary Schools The heart was much enlarged, and soft, with spots indicating chronic inflammatory action on and about the right auricle. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners A similar process occurs on the right side of the heart, but here, instead of a mitral valve of two flaps between auricle and ventricle, we have a tricuspid valve with three. Text Book of Biology, Part 1: Vertebrata The two chambers of the heart that receive blood from the auricles and force it into the arteries. A Handbook of Health The sense of direction by the ear is known to be due in part to the action of the auricle, or projecting part of the ear. Illusions A Psychological Study The auricles on each side communicate with the ventricles below; but after birth there is no communication between the cavities on the opposite sides of the heart. Physiology and Hygiene for Secondary Schools The heart was flaccid, the right auricle and ventricle were enlarged and attenuated, and both vena cava at their junction with the heart were much dilated, the valvular structure natural. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners The external ear is called auricle or pinna. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada A, the right ventricle; B, the left ventricle; C, the right auricle D, the left auricle; E, the aorta; F, the pulmonary artery. Object Lessons on the Human Body A Transcript of Lessons Given in the Primary Department of School No. 49, New York City The auricle and ventricle on each side are completely separated. Disease and Its Causes A valve is found at the opening of each auricle into the ventricle, and at the opening of each ventricle into the artery with which it is connected. Physiology and Hygiene for Secondary Schools In examining the heart after its removal from the body, it was found peculiarly large and flabby, its cavities considerably distended, especially the right auricle and ventricle, while the valvular structure seemed natural. An Investigation into the Nature of Black Phthisis or Ulceration Induced by Carbonaceous Accumulation in the Lungs of Coal Miners The heart consists of four chambers or cavities, two forming the right half, the right auricle and right ventricle, and two forming the left half, the left auricle and left ventricle. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada You must have lungs, not bellows; and an active heart, not an assortment of sluggish auricles and ventricles. The Atlantic Monthly, Volume 09, No. 51, January, 1862 Contraction or systole is followed by a pause or diastole during which the blood flows from the veins into the auricles. Disease and Its Causes The valve between the right auricle and the right ventricle is called the tricuspid valve. Physiology and Hygiene for Secondary Schools For which has the care of the other? which keeps house? which looks after the replenishing of the aorta and auricles, and stores away the secretions? Mardi: and A Voyage Thither, Vol. II In the capillaries of the lungs it again becomes arterialized by the air that fills the lungs and is then carried to the left auricle by the pulmonary veins. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada This foul stream goes to the right auricle of the heart. The Hindu-Yogi Science Of Breath Both of the auricles and both of the ventricles contract at the same, time, the ventricular contraction following closely upon the contraction of the auricles. Disease and Its Causes Their purpose is to serve as valve stops, to prevent the valve from being thrown, by the force of the blood stream, back into the auricle. Physiology and Hygiene for Secondary Schools The auricles of this species are sometimes elongated and may even take root. The Fern Lover's Companion A Guide for the Northeastern States and Canada The mitral valve guards the opening to the left ventricle from the left auricle. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada He also had congenital deformity of the right auricle. Anomalies and Curiosities of Medicine The heart generally has two auricles and one ventricle. The Gutenberg Webster's Unabridged Dictionary Section R The walls of the ventricles are much thicker and stronger than those of the auricles, while the walls of the left ventricle are two or three times thicker than those of the right. Physiology and Hygiene for Secondary Schools In fishes there are but one auricle and one ventricle, the blood being pumped from the ventricle through the gills to the system, and thence returned to the auricle. The Gutenberg Webster's Unabridged Dictionary Section F, G and H The valves that control the opening from the left auricle to the left ventricle. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Morgan reports two cases of congenital macrostoma accompanied by malformation of the auricles and by auricular appendages. Anomalies and Curiosities of Medicine The 'heart' is composed of four cavities; two above, called 'auricles', from their shape, and two below, termed 'ventricles', occupying the bulk of the heart. The Dog A less marked but similar difference exists between the auricles and also between the valves on the two sides of the heart. Physiology and Hygiene for Secondary Schools In most amphibians and reptiles, the separation of the auricles is partial or complete, and in reptiles the ventricles also are separated more or less completely. The Gutenberg Webster's Unabridged Dictionary Section F, G and H No sounds gliding through the ambient air salute my attentive auricles, save the frightful notes which at different intervals issue from that common marauder of nocturnal peace—the lonesome, ruin-dwelling owl. Life and Remains of John Clare "The Northamptonshire Peasant Poet" In King's College Hospital in London there is a heart of a boy of thirteen in which the cavities consist of a single ventricle and a single auricle. Anomalies and Curiosities of Medicine Subsequently it is shortened and widened, and becomes divided by a contraction into two parts, a ventricle and an auricle; it is now the heart of a fish. Vestiges of the Natural History of Creation The right ventricle forces the blood through the lungs and into the left auricle. Physiology and Hygiene for Secondary Schools The external ear consists of an expanded portion known as the pinna or auricle, and of a passage, the auditory canal or meatus, leading inwards from it. A Practical Physiology It is also supplied with lungs, and two auricles and two ventricles to the heart; all of which bring it still closer into an alliance with the quadrupedal species of the animal kingdom. The Book of Household Management The skin passed naturally over the chest from one side to another, but was raised at one part of the groove by a pulsatile swelling which occupied the position of the right auricle. Anomalies and Curiosities of Medicine A subdivision of the auricle afterwards makes a triple-chambered form, as in the heart of the reptile tribes; lastly, the ventricle being also subdivided, it becomes a full mammal heart. Vestiges of the Natural History of Creation The left ventricle forces blood through all parts of the body and back to the auricle. Physiology and Hygiene for Secondary Schools The surface of the auricle is convoluted to collect and transmit the vibrations of air by which sound is produced the auditory canal conducts these vibrations to the tympanic membrane. A Practical Physiology The Lesser Circulation.—The dark blood from the veins collects in the right auricle, and, going through the tricuspid valve, empties into the right ventricle. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics The knowledge of anomalous auricles is lost in antiquity. Anomalies and Curiosities of Medicine Furthermore, the veins are furnished inside at intervals with little doors, similar to those we noticed at the entrance of the auricles and ventricles of the heart. The History of a Mouthful of Bread And its effect on the organization of men and animals With the right auricle, the superior and the inferior venæ cavæ and the coronary veins. Physiology and Hygiene for Secondary Schools Many animals move the auricle in the direction of the sound. A Practical Physiology But, when the strong ventricles contract, especially the left one, which must drive the blood to the extremities, some arrangement is necessary to prevent it from returning into the auricle. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics Roberts mentions a man who ran 60 yards and lived one hour after being shot through both lungs and the right auricle. Anomalies and Curiosities of Medicine The two great compartments are called ventricles, the two small pouches auricles, and they are also distinguished as being on the right or left side;—right ventricle, left ventricle, right auricle, left auricle. The History of a Mouthful of Bread And its effect on the organization of men and animals With the left auricle, the four pulmonary veins. Physiology and Hygiene for Secondary Schools Let a person press both auricles against the side of the head, and hold both hands vertically in front of each meatus. A Practical Physiology Passing through the arteries, capillaries, and veins, it returns through the venæ cavæ, ascending and descending, gathers again in the right auricle, and so completes the "grand round" of the body. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics There was a circular lacerated opening in the tricuspid valve, and the ball must have been in the right auricle during the fourteen days in which the man lived. Anomalies and Curiosities of Medicine The right auricle alone now received the venous blood from the body, while the left auricle received the venous blood that flowed from the lungs and gills to the heart. The Evolution of Man — Volume 2 These receive blood from the lungs and empty it into the left auricle. Physiology and Hygiene for Secondary Schools Open the left auricle, and notice the entrance of the pulmonary veins, and the passage into the ventricle. A Practical Physiology The auricle and ventricle on each side communicate with each other, but the right and left halves of the heart are entirely distinct, and perform different offices. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics A more recent analysis is given by Meyer of cases reported since 1870: Meyer collects 25 cases of rupture of the left ventricle seven of the right ventricle, and four of the right auricle. Anomalies and Curiosities of Medicine From this point arterial blood returns to the left auricle of the heart, while the venous blood gathers in the right auricle. The Evolution of Man — Volume 2 On account of the work which they perform, the auricles have been called the "feed pumps" of the heart; and the ventricles, the "force pumps." Physiology and Hygiene for Secondary Schools There are, therefore, the right and left auricles, with their thin, soft walls, and the right and left ventricles, with their thick and strong walls. A Practical Physiology Both these circulations are going on constantly, as the two auricles contract, and the two ventricles expand simultaneously, and vice versa. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics Pulmonary artery: An artery which passes through the lungs, being divided into several branches, which form a beautiful network over the air-vessels, and finally empty themselves into the left auricle of the heart. American Woman's Home As both auricles open into a single ventricle, this contains mixed blood. The Evolution of Man — Volume 2 Locate the right auricle and the right ventricle; the left auricle and the left ventricle. Physiology and Hygiene for Secondary Schools The two largest veins in the body, the superior vena cava and the inferior vena cava, open into the right auricle. A Practical Physiology Why are there no valves in the auricles? Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics In man they are more numerous in the left than in the right ventricle, more abundant in the ventricles than in the auricles; and occasionally there appear to be none present in the auricles. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) In the Dipneusts the auricle of the heart is divided by an incomplete partition into two halves. The Evolution of Man — Volume 2 Observe the openings into the auricle, there being one each for the vena cava superior, the vena cava inferior, and the coronary vein. Physiology and Hygiene for Secondary Schools These two veins bring venous blood from all parts of the body, and pour it into the right auricle, whence it passes into the right ventricle. A Practical Physiology A real auricular fibrillation shows a semiparalysis of the auricles, and during this condition normal systolic contractions do not occur, although there are small rapid twitchings of different muscle fibers in the auricles. Disturbances of the Heart Besides the motions already spoken of, we have still to consider those that appertain to the auricles. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) In the Amphibia the partition between the two auricles is complete. The Evolution of Man — Volume 2 This, as we have seen, aids in the flow of the blood into the right auricle. Physiology and Hygiene for Secondary Schools Four veins, called the pulmonary veins, open into the left auricle, two from each lung. A Practical Physiology Although it was once thought that the auricle was paralyzed in this condition, it probably simply loses its coordinate activity. Disturbances of the Heart But it is of the store which the heart contains in its auricles and ventricles that I here speak. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The hind section, the auricle, receives the venous blood from the body and passes it on to the anterior section, the ventricle. The Evolution of Man — Volume 2 Work of Auricles and Ventricles Compared.—In the work of the heart the two auricles contract at the same time—their contraction being followed immediately by the contraction of both ventricles. Physiology and Hygiene for Secondary Schools These two large trunks meet as they enter the right auricle. A Practical Physiology Venous pulsation in the neck is generally marked, showing an impeded contraction of tile right auricle. Disturbances of the Heart Whence it is manifest that the blood enters the ventricles, not by any attraction or dilatation of the heart, but by being thrown into them by the pulses of the auricles. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The two auricles have a common opening into the simple ventricle, where the two kinds of blood mix, and are driven through the arterial cone or bulb into the arterial arches. The Evolution of Man — Volume 2 The ventricles, having in this way been fully charged by the auricles, now contract and force their contents into the large arteries. Physiology and Hygiene for Secondary Schools We may conveniently begin with the portion of blood contained at any moment in the right auricle. A Practical Physiology He also found that compression of this nodal region of the auricle from some growth or other disturbance in the mediastinal region could cause auricular fibrillation. Disturbances of the Heart And here I would observe, that whenever I speak of pulsations as occurring in the auricles or ventricles, I mean contractions: first the auricles contract, and then and subsequently the heart itself contracts. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Heart of a rabbit-embryo, from behind, a vitelline veins, b auricles of the heart, c atrium, d ventricle, e arterial bulb, f base of the three pairs of arterial arches. The Evolution of Man — Volume 2 The ventricles keep a pressure on the blood which is sufficient to force it through all the blood tubes and back to the auricles. Physiology and Hygiene for Secondary Schools The four pulmonary veins bring back bright, scarlet blood, and pour it into the left auricle of the heart, whence it passes through the mitral valve into the left ventricle. A Practical Physiology Consequently, although a pathologic condition of the node is a frequent, and perhaps the most frequent, cause of auricular fibrillation, other conditions, especially anything which dilates the right auricle, may cause it. Disturbances of the Heart And if at this time, the auricles alone pulsating, the point of the heart be cut off with a pair of scissors, you will perceive the blood flowing out upon each contraction of the auricles. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Only the right auricle now receives the venous blood from the veins of the body. The Evolution of Man — Volume 2 The thick, lower portion contains the cavities called ventricles; the thin, upper, ear-shaped portions are the auricles. Physiology and Hygiene for Secondary Schools The mitral valve instantly closes and blocks the passage backward into the auricle; the blood, having no other way open, is forced through the semilunar valves into the aorta. A Practical Physiology The auricles of the heart may act more energetically than normal, and precede as usual the ventricular contraction; or the auricles and ventricles may contract almost together—a so-called "nodal" type of contraction. Disturbances of the Heart The more muscular and powerful men are, the firmer their flesh; the stronger, thicker, denser, and more fibrous their hearts, the thicker, closer, and stronger are the auricles and arteries. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The left auricle receives the arterial blood from the pulmonary veins. The Evolution of Man — Volume 2 From these capillaries the blood is conveyed by the pulmonary veins to the left auricle. Physiology and Hygiene for Secondary Schools The two auricles contract at the same time, and this is followed at once by the contraction of the two ventricles. A Practical Physiology Sometimes friction over the base of the heart in the region of the auricles is of benefit. Disturbances of the Heart In like manner, wherever the heart has a single ventricle, there is an auricle appended, flaccid, membranous, hollow, filled with blood; and where there are two ventricles, there are likewise two auricles. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The right auricle receives its carbonised or venous blood from the veins of the body, and the right ventricle drives it through the pulmonary arteries into the lungs. The Evolution of Man — Volume 2 Trace the blood from the right ventricle to the alveoli and back again to the left auricle. Physiology and Hygiene for Secondary Schools While the ventricles are contracting, the auricles begin to relax, and after the ventricles contract they also relax. A Practical Physiology It has but little action on the auricles. Disturbances of the Heart Commencing at the right ear, it swept with a terrific chasm to the left—the short pendants which she wore in either auricle continually bobbing into the aperture. The Works of Edgar Allan Poe — Volume 3 From here the blood returns, as oxydised or arterial blood, through the pulmonary veins to the left auricle, and is forced by the left ventricle into the arteries of the body. The Evolution of Man — Volume 2 The heart systole includes the contraction of both the auricles and the ventricles.20.Martin, Physiology and Hygiene for Secondary Schools Now comes a pause, or rest, after which the auricles and ventricles contract again in the same order as before, and their contractions are followed by the same pause as before. A Practical Physiology Often in the first stage of this weakening and later fibrillation of the auricles the patient may recognize the cardiac irregularity and disturbances. Disturbances of the Heart His explanations were practically the same as those given to-day—first the contraction of the auricle, sending blood into the ventricle; then ventricular contraction, making the pulse, and sending the blood into the arteries. A History of Science — Volume 2 He recognized too the importance of the auricles as the first to move and the last to die. The Evolution of Modern Medicine A Series of Lectures Delivered at Yale University on the Silliman Foundation in April, 1913 Thus the pulmonary artery carries venous blood from the right ventricle to the lungs, as the pulmonary veins carry arterial blood from the lungs to the left auricle. A Practical Physiology Now the time occupied from the instant the auricles begin to contract until after the contraction of the ventricles and the pause, is less than a second. A Practical Physiology The muscular tissue of the auricle, however, is not sufficient to allow any great hypertrophy. Disturbances of the Heart The four pulmonary veins, as we have learned, carry the arterial blood from the lungs to the left auricle. A Practical Physiology Chapter IV, in which he describes the movements of the auricles and ventricles, is a model of accurate description, to which little has since been added. The Evolution of Modern Medicine A Series of Lectures Delivered at Yale University on the Silliman Foundation in April, 1913 The superior and inferior venæ cavæ are busily filling the auricle with dark, impure blood. A Practical Physiology Of this time one-fifth is occupied by the contraction of the auricles, two-fifths by the contraction of the ventricles, and the time during which the whole heart is at rest is two-fifths of the period. A Practical Physiology The left ventricle being sufficient, there is no damming back through the left auricle to the lungs. Disturbances of the Heart Remove part of the wall of the right auricle, and examine the right auriculo-ventricular opening. A Practical Physiology The student who will take a little trouble in noticing the ears of the persons whom he meets from day to day will be greatly interested and surprised to see how much the auricle varies. A Practical Physiology This increased muscular action of the right ventricle relieves the pulmonary congestion, and an increased amount of blood is forced into the left auricle. Disturbances of the Heart The two upper chambers are called auricles from their supposed resemblance to the ear. A Practical Physiology This auricle then somewhat hypertrophies, but is unable to prevent more or less damming back of the blood into the lungs through the pulmonary veins. Disturbances of the Heart The blood flowing from the pulmonary veins into the left auricle finds this cavity already partly filled with blood regurgitated from the left ventricle. Disturbances of the Heart The left auricle finds it difficult to empty all of its blood into the left ventricle during the ordinary diastole of the heart. Disturbances of the Heart The cavity of the heart that is most affected by this lesion is the left ventricle, which receives blood both from the left auricle, and regurgitantly from the aorta. Disturbances of the Heart They may be compared to swinging curtains which, by opening only one way, allow the blood to flow from the auricles to the ventricles, but by instantly folding back prevent its return. A Practical Physiology With the mitral valve insufficient, a greater or less amount of blood is regurgitated into the left auricle, which soon becomes dilated. Disturbances of the Heart The interpretation of the jugular tracing, or phlebogram as the vein tracing may be termed, shows the apex of the rise to be due to the contraction of the auricle. Disturbances of the Heart The short downward curve from the apex means relaxation of the auricle. Disturbances of the Heart Its lower end is continuous with the muscle fibers of the right auricle. Disturbances of the Heart They form larger and larger vessels until they become two large veins in each lung, and pour their contents into the left auricle. A Practical Physiology |
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