| 单词 | right ventricle |
| 例句 | He stepped on his switch and said, “There are two lacerations of the myocardium; a one-point-five-centimeter laceration in the right ventricle and a one-point-eight-centimeter laceration penetrating the left ventricle.” American Gods 2011-06-21T00:00:00Z During that process, they found a significant hole between my right ventricle and my aorta called a right ventricular fistula, which they sealed with a metal disc. For a 30-Year-Old Virgin, It’s Now or Never 2018-03-30T04:00:00Z This deoxygenated blood then passes to the right ventricle through the tricuspid valve, which prevents the backflow of blood. Concepts of Biology 2013-04-25T00:00:00Z This sends some of the deoxygenated blood straight to the lungs, which means the right ventricle has a third less work to do because it doesn't need to pump that blood. 'I was told my heart might fail within a year' 2023-04-28T04:00:00Z More than 1 million mostly older Americans have seriously leaking tricuspids, a valve on the right side of the heart that lets deoxygenated blood flow between the right atrium and the right ventricle. New Treatment Could Help Fix the Heart’s ‘Forgotten Valve’ 2023-03-04T05:00:00Z Two years later, he suffered a heart attack, which left him with a stent above his right ventricle. Christian health nonprofit that let people “opt out of Obamacare” saddled members with debt and ruin 2023-02-28T05:00:00Z After blood passes through the pulmonary arteries, the right semilunar valves close preventing the blood from flowing backwards into the right ventricle. Biology for AP Courses 2022-06-09T00:00:00Z After it is filled, the right ventricle contracts, pumping the blood to the lungs for reoxygenation. Concepts of Biology 2013-04-25T00:00:00Z The condition leaves the right ventricle diseased and the tricuspid valve is malformed so it leaks. 'I was told my heart might fail within a year' 2023-04-28T04:00:00Z Most of the rest of the blood is pumped to the right ventricle, and from there, into the pulmonary trunk, which splits into pulmonary arteries. Anatomy and Physiology 2013-06-19T00:00:00Z Both the ray-finned fishes and the lobe-finned lungfish also apparently have a regulatory element that helps shape the right ventricle of the heart to deliver oxygen more efficiently. Fish had the genes to adapt to life on land—while they were still swimming the seas 2021-02-10T05:00:00Z Electrical charges pulse from the SA node causing the two atria to contract in unison; then the pulse reaches the atrioventricular node between the right atrium and right ventricle. Biology for AP Courses 2022-06-09T00:00:00Z The signal has, by this time, passed down the walls of the heart, through a point between the right atrium and right ventricle. Concepts of Biology 2013-04-25T00:00:00Z Furthermore, far less is known about conditions that affect the right ventricle, like EA, than the left. 'I was told my heart might fail within a year' 2023-04-28T04:00:00Z There are three papillary muscles in the right ventricle, called the anterior, posterior, and septal muscles, which correspond to the three sections of the valves. Anatomy and Physiology 2013-06-19T00:00:00Z The goal was improving the “heart’s pumping ability by synchronizing the left and right ventricles to distribute blood to the lungs and body more effectively,” according to the manufacturer, EBR Systems Inc. Ascension St. Vincent’s patient gets wireless pacemaker 2020-02-02T05:00:00Z Ebstein anomaly, according to Cincinnati Children’s Hospital, is an abnormality in the tricuspid valve, which separates the right atrium from the right ventricle, and affects normal blood flow. Texas judge rules hospital can remove baby Tinslee Lewis from life support, family has week to appeal 2020-01-02T05:00:00Z Tinslee was born with Ebstein Anomaly, which, according to Cincinnati Children’s Hospital, is an abnormality in the tricuspid valve, which separates the right atrium from the right ventricle, and affects normal blood flow. Court order prevents hospital from removing 9-month-old's life support as family looks for new facility 2019-11-11T05:00:00Z At 4 months old, Avery developed severe Pulmonary Hypertension causing right ventricle shut down. Conway family welcomes baby home after 300 days in NICU 2018-02-19T05:00:00Z The blood in the superior and inferior venae cavae flows into the right atrium, which pumps blood into the right ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z The condition occurs if muscle tissue in the right ventricle dies and is replaced with scar tissue, which disrupts the heart’s electrical signals and causes arrhythmias, according to the American Heart Association. Woman who suffered cardiac arrest aims to educate others 2018-02-04T05:00:00Z The human heart is divided into two lower chambers, called ventricles: the right ventricle pumps blood to the lungs, while the left one pumps blood to the rest of the body. This robot can help keep pig hearts beating by gently squeezing them 2017-11-22T05:00:00Z It condensed a battery and circuit board into a pill-size implant attached to the heart's inner wall inside the right ventricle, the only chamber with enough space for the unit. New Wireless Pacemaker Could Prevent Common Complications 2017-09-01T04:00:00Z In a normal heart, the pulmonary artery carries unoxygenated blood from the right ventricle to the lungs to get oxygen. Procedures to fix complex congenital heart defects 2017-06-02T04:00:00Z Figure 19.4 Dual System of the Human Blood Circulation Blood flows from the right atrium to the right ventricle, where it is pumped into the pulmonary circuit. Anatomy and Physiology 2013-06-19T00:00:00Z As a result of the procedure, de-oxygenated blood is sent to the lungs through the pulmonary artery attached to the left ventricle while oxygenated blood is sent through the aorta attached to the right ventricle. Utah football coach not overpowered by heart defect 2017-06-02T04:00:00Z A schematic of how the device works, in this case on the diseased right ventricle. This robot can help keep pig hearts beating by gently squeezing them 2017-11-22T05:00:00Z Doctors route blood around the abnormal left heart and they convert the right ventricle - which normally would shuttle oxygen-poor blood to the lungs - into the main pumping chamber. Testing stem cells in tiniest hearts to fight birth defect 2016-12-20T05:00:00Z Doctors route blood around the abnormal left heart and they convert the right ventricle — which normally would shuttle oxygen-poor blood to the lungs — into the main pumping chamber. Testing stem cells in tiniest hearts to fight birth defect 2016-12-20T05:00:00Z At the base of the pulmonary trunk is the pulmonary semilunar valve, which prevents backflow of blood into the right ventricle during ventricular diastole. Anatomy and Physiology 2013-06-19T00:00:00Z Their right ventricles, one of the two lower chambers of the heart, were noticeably enlarged and did not function as well as the left ventricles both immediately after the marathon-style event and a week later. Do Olympians Get Too Much Exercise? 2016-08-10T04:00:00Z But as the FDA explained, the new inch-long Micra device is implanted directly into the right ventricle chamber of the heart, with no wire lead needed. FDA Approves First Wire-Free Pacemaker 2016-04-07T04:00:00Z Noticing bleeding from the right ventricle, Dr. Hashimoto stopped pumping to sew up the hole. Artificial Patients, Real Learning 2015-11-09T05:00:00Z At about 9.30pm, a bullet entered the left side of Christopher’s chest and exited through the right side, puncturing the liver and right ventricle of the heart. One year after the Isla Vista massacre, a father's gun control mission is personal 2015-05-23T04:00:00Z Figure 20.23 Pulmonary Circuit Blood exiting from the right ventricle flows into the pulmonary trunk, which bifurcates into the two pulmonary arteries. Anatomy and Physiology 2013-06-19T00:00:00Z The right ventricles pumped considerably less blood than would be expected from a completely healthy heart. Do Olympians Get Too Much Exercise? 2016-08-10T04:00:00Z The Nanostim device is implanted directly into the wall of the right ventricle, one of heart's lower chambers. 'Wireless' Pacemaker Working Well So Far, Researchers Say 2014-11-19T05:00:00Z To get the gene to the heart, the researchers sent a modified virus into the right ventricle through a catheter. Scientists are one step closer to replacing mechanical pacemakers with biological ones 2014-07-16T04:00:00Z C1 is for people in whom the left or right ventricle remains compensated. Heart Societies Issue New Guidelines For Valve Disease 2014-03-03T21:10:00Z The right ventricle pumps deoxygenated blood into the pulmonary trunk, which leads toward the lungs and bifurcates into the left and right pulmonary arteries. Anatomy and Physiology 2013-06-19T00:00:00Z Unlike in the earlier study, the athletes’ right ventricles pumped just as much blood as would be expected and otherwise behaved normally and, in some ways, better than normal. Do Olympians Get Too Much Exercise? 2016-08-10T04:00:00Z But with pulmonary arterial hypertension, the lung’s arteries become narrowed, forcing the right ventricle of the heart, which supplies blood to the lungs, to work harder to force blood through the vessels. Pulmonary arterial hypertension can be hard to diagnose, but it be fatal if left untreated 2013-11-04T22:05:59Z Tiny arteries in the lungs harden, restricting blood flow, which forces the heart’s right ventricle to work harder and harder, eventually exhausting it. Singing opera with someone else’s lungs 2013-05-27T21:23:39Z The degree of hypertrophy of the left or right ventricle is thus, up to a certain point, a measure of the extent of the lesion of the aortic or mitral valve respectively. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Located between the left and right ventricles are two additional sulci that are not as deep as the coronary sulcus. Anatomy and Physiology 2013-06-19T00:00:00Z 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 The continued action of the right ventricle forced blood into the pulmonary capillaries, where it was compelled to accumulate in consequence of the inability of the left ventricle to receive and expel it. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z The air in the lungs contributes to the elaboration of the blood, which it draws for that purpose from the right ventricle of the heart through the pulmonary artery. Curiosities of Medical Experience 2012-03-09T03:00:20.410Z On the left side, opening into the right ventricle, is the right auriculo-ventricular opening. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z The right ventricle does not need to generate as much pressure, since the pulmonary circuit is shorter and provides less resistance. Anatomy and Physiology 2013-06-19T00:00:00Z CRT patients suffer from a type of chronic heart failure requiring both the left and right ventricles to be paced. Easy to Beat: Next-Gen Cardiac Care Includes Wireless Pacemakers 2011-11-22T13:15:23.390Z The right ventricle does not appear to be much affected. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z There is a diminutive heart, whose right ventricle has comparatively exaggerated dimensions, while the arteries have lessened calibre. Degeneracy Its Causes, Signs and Results 2011-05-02T02:00:17.657Z I am now—about to—insert—a needle into the right ventricle through the pericardium and walls. First Person Paramount 2011-04-07T02:00:19.233Z Pressure generated by the left ventricle will be appreciably greater than the pressure generated by the right ventricle, since the existing pressure in the aorta will be so much higher. Anatomy and Physiology 2013-06-19T00:00:00Z As a consequence an increased strain is thrown on the right ventricle with a consequent dilatation leading on to heart failure and all its attendant troubles. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z Sanders has described a case of primary pulmonary arteriosclerosis with hypertrophy of the right ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The heart is often diminutive; the right ventricle is exaggerated. Degeneracy Its Causes, Signs and Results 2011-05-02T02:00:17.657Z I am now forcing into our subject's right ventricle the solution of my invention, which is destined to slay the tubercle bacilli. First Person Paramount 2011-04-07T02:00:19.233Z The right atrium receives systemic blood relatively low in oxygen and pumps it into the right ventricle, which pumps it into the pulmonary circuit. Anatomy and Physiology 2013-06-19T00:00:00Z The right anterior corner of the right ventricle passes into the short stem, guarded by three semi-lunar valves, which divides into the two pulmonary arteries. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z While the devices solve the problem of life-threatening left-ventricle failure, they don't help the right ventricle. Cheney's new heart pump not a miracle cure 2010-07-15T20:38:00Z 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 "This is the right ventricle," he began, speaking in quick, disjointed sentences. First Person Paramount 2011-04-07T02:00:19.233Z Although the ventricles on the right and left sides pump the same amount of blood per contraction, the muscle of the left ventricle is much thicker and better developed than that of the right ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z The right ventricle occupies the ventral portion of the heart. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z In some patients, the right ventricle is so weak it eventually fails, too. Cheney's new heart pump not a miracle cure 2010-07-15T20:38:00Z The right ventricle of the heart gives rise to the Pul´mo-na-ry artery; the left ventricle, to a large artery called the A-ort´a. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) The cavity which is situated on the right side of the heart, is called the right ventricle, and that on the left the left ventricle. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease Figure 19.8 Differences in Ventricular Muscle Thickness The myocardium in the left ventricle is significantly thicker than that of the right ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z Grasp the apex of the heart in the forceps and sear the surface of the right ventricle. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Hence the discovery of the course of the blood from the right ventricle, through the lungs, to the left ventricle was in no wise an anticipation of the discovery of the circulation of the blood. The Great Events by Famous Historians, Volume 11 The walls of the right ventricle, being thinner than the left, are more distensible, and thus this cavity will contain a greater amount of blood. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) It then passes through the right auriculo-ventricular opening into the right ventricle, thence through the pulmonary artery to the lungs. Special Report on Diseases of the Horse From the right atrium, blood moves into the right ventricle, which pumps it to the lungs for gas exchange. Anatomy and Physiology 2013-06-19T00:00:00Z Having parted thus with its impurities, the venous blood ebbed back again from the right ventricle into the venous system. The Legacy of Greece Essays By: Gilbert Murray, W. R. Inge, J. Burnet, Sir T. L. Heath, D'arcy W. Thompson, Charles Singer, R. W. Livingston, A. Toynbee, A. E. Zimmern, Percy Gardner, Sir Reginald Blomfield With one throb, the blood is sent from the right ventricle into the lungs, and from the left ventricle into the aorta. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School How is the right ventricle adapted to its function? A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Hypertrophy of the left ventricle alone increases its length; of the right ventricle alone increases its breadth toward the right side. Special Report on Diseases of the Horse The single vessel exiting the right ventricle is the pulmonary trunk. Anatomy and Physiology 2013-06-19T00:00:00Z But for a small fraction of the venous blood that entered the right ventricle another fate was reserved. The Legacy of Greece Essays By: Gilbert Murray, W. R. Inge, J. Burnet, Sir T. L. Heath, D'arcy W. Thompson, Charles Singer, R. W. Livingston, A. Toynbee, A. E. Zimmern, Percy Gardner, Sir Reginald Blomfield From this cavity of the heart, the blood is carried into the right ventricle, C; and from this ventricle, the pulmonary arteries, D, convey into the lungs the blood which is returned from the body. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School D, The opening between the right auricle and right ventricle. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) 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 Most of the blood pumped from the right ventricle into the pulmonary trunk is thereby diverted into the aorta. Anatomy and Physiology 2013-06-19T00:00:00Z The right ventricle is exposed by working from the left side of the mouth. Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery To fill the new-made vacuum, the whole of the blood from the right ventricle rushes through the pulmonary tube, leaving none to go through the ductus arteriosus, thus made useless, and henceforth to be abolished. Theory of Circulation by Respiration Synopsis of its Principles and History Injury to the right ventricle is the most fatal injury and the most frequent. Aids to Forensic Medicine and Toxicology 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 The anterior cardiac veins parallel the small cardiac arteries and drain the anterior surface of the right ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z The valve between the right auricle and the right ventricle is called the tricuspid valve. Physiology and Hygiene for Secondary Schools But it is moved thither, and with a power which presses down and closes the valve of the foramen ovale, thus clearly manifesting that this current exceeds in force that in the right ventricle. Theory of Circulation by Respiration Synopsis of its Principles and History 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 After birth, the heart discharges the blood from its right ventricle into the lungs; and after passing through these it is emptied into the left ventricle: thus the heart opens the lungs. Angelic Wisdom Concerning the Divine Love and the Divine Wisdom The left bundle branch supplies the left ventricle, and the right bundle branch the right ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z The right semilunar valve is situated around the opening of the right ventricle into the pulmonary artery. Physiology and Hygiene for Secondary Schools He died in 1882, seventeen years after his discharge, "from rupture of the heart, caused by the bursting and parting of the fibers of the right ventricle." A Compilation of the Messages and Papers of the Presidents Volume 8, part 3: Grover Cleveland, First Term Pulmonary semilunar valves guard the orifice of the pulmonary artery, keeping the blood from flowing back into the right ventricle. 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 During ventricular systole, pressure rises in the ventricles, pumping blood into the pulmonary trunk from the right ventricle and into the aorta from the left ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z The right ventricle forces the blood through the lungs and into the left auricle. Physiology and Hygiene for Secondary Schools The work which the right ventricle accomplishes is very much less than that of the left, and the right ventricle has a correspondingly thinner wall. Disease and Its Causes The right ventricle of the heart was empty, and the left filled with dark blood, which had coagulated. Anomalies and Curiosities of Medicine One of them, of the size of a small nutmeg, occupied the left ventricle; the other, which was still smaller, was found at the base of the right ventricle. The Dog The right ventricle pumps oxygen-depleted blood into the pulmonary trunk and right and left pulmonary arteries, which carry it to the right and left lungs for gas exchange. Anatomy and Physiology 2013-06-19T00:00:00Z Locate the right auricle and the right ventricle; the left auricle and the left ventricle. Physiology and Hygiene for Secondary Schools Having separated the heart from the lungs, cut out a portion of the wall of the right ventricle towards its lower part, so as to lay the cavity open. A Practical Physiology Morand gives an instance of survival for five days after wound of the right ventricle. Anomalies and Curiosities of Medicine Some years ago I found some worms of the filacia species in the right ventricle of the heart of a dog, which had produced sudden death by interrupting the action of the valves. The Dog This allows blood that is relatively low in oxygen from the right ventricle to flow into the left ventricle and mix with the blood that is relatively high in oxygen. Anatomy and Physiology 2013-06-19T00:00:00Z The wall of the right ventricle may now be raised and the cavity exposed. Physiology and Hygiene for Secondary Schools From the right ventricle a large vessel called the pulmonary artery passes to the lungs, and from the left ventricle a large vessel called the aorta arches out to the general circulation of the body. A Practical Physiology It was found that the right ventricle was transversely opened for about an inch, the ball having penetrated its anterior surface, near the origin of the pulmonary artery. Anomalies and Curiosities of Medicine 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 marginal arteries supply blood to the superficial portions of the right ventricle. Anatomy and Physiology 2013-06-19T00:00:00Z This starts at the right ventricle and by its branches conveys blood to the capillaries surrounding the alveoli in all parts of the lungs. 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 line drawn from the wound of entrance to that of exit would pass exactly through the right ventricle. 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 The cavity of the bulb is divided into two lateral halves, the pulmonary-artery bulb, that opens into the right ventricle, and the aorta-bulb, that opens into the left ventricle. The Evolution of Man — Volume 2 The pressure maintained by the right ventricle is about one third as great. Physiology and Hygiene for Secondary Schools The passage leading to the right ventricle lies open, and through it the blood pours till the ventricle is full. A Practical Physiology Hamilton mentions an instance of gunshot wound of the heart, in which for twenty years a ball was embedded in the wall of the right ventricle, death ultimately being caused by pneumonia. Anomalies and Curiosities of Medicine The venous blood which leaves the heart, arrives on its side by one large canal, which passes out from the right ventricle, and which is called the pulmonary artery. The History of a Mouthful of Bread And its effect on the organization of men and animals 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 These valves, when shut, prevent any backward flow of the blood on the right side between the pulmonary artery and the right ventricle, and on the left side between the aorta and the left ventricle. A Practical Physiology When the pericardial sac was incised, a teaspoonful of turbid fluid oozed out, and the needle was felt in an oblique position in the right ventricle. Anomalies and Curiosities of Medicine Be this as it may, venous blood arrives from the right ventricle through the pulmonary artery. The History of a Mouthful of Bread And its effect on the organization of men and animals In like manner, when the right ventricle contracts and propels its charge of blood, the pulmonary artery is distended at the same time with the other arteries of the body. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Often this condition is associated with regurgitation; but in a simple mitral stenosis the greatest hypertrophy is of necessity in the right ventricle. Disturbances of the Heart From the right ventricle arises one large vessel, the pulmonary artery, which soon divides into two branches of nearly equal size, one for the right lung, the other for the left. A Practical Physiology Lavender mentions an incised wound of the heart penetrating the right ventricle, from which the patient recovered. Anomalies and Curiosities of Medicine But the right ventricle has two doors of exit. The History of a Mouthful of Bread And its effect on the organization of men and animals 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) This rarely, if ever, occurs alone; it is generally a sequence of other valvular defects, and represents an overworked, dilated right ventricle. Disturbances of the Heart 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 Among the older writers who note this traumatic injury are Fine, who mentions concussion rupturing the right ventricle, and Ludwig, who reports a similar accident. Anomalies and Curiosities of Medicine In like manner, the pulse in the right ventricle failing, the pulse in the pulmonary artery ceases also. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Some animals have the right ventricle smooth internally, but the left provided with fibrous bands, such as the goose, swan, and larger birds; and the reason is the same here as elsewhere. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) As the heart begins to fail, a dilatation of the right ventricle causes passive congestion of the kidneys, and the chronic interstitial nephritis may progress more rapidly. Disturbances of the Heart Yet it is denied that the right ventricle makes spirits, which is rather held to supply nourishment to the lungs. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Bell mentions a case in which, six years after the receipt of a gunshot wound of the chest, a ball was found in the right ventricle. Anomalies and Curiosities of Medicine The right ventricle hypertrophy caused by mitral lesions has already been sufficiently discussed. Disturbances of the Heart Why should we not rather believe that the right took spirits from the left, than that the left obtained blood from the right ventricle through these foramina? The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) It also acts for good on the right ventricle. Disturbances of the Heart Sooner or later during this failing compensation the right ventricle becomes dilated, and the symptoms of cardiac insufficiency and venous congestion occur, as described above with mitral insufficiency. Disturbances of the Heart Holly reports a case of pistol-shot wound through the right ventricle, septum, and aorta, with the ball in the left ventricle. Anomalies and Curiosities of Medicine If the right ventricle dilates, digitalis may be of benefit. Disturbances of the Heart The right ventricle sends its charge into the lungs by the vessel which is called vena arteriosa, but which in structure and function, and all other respects, is an artery. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The right ventricle becomes hypertrophied, if the child lives to overcome the obstruction. Disturbances of the Heart In other words, if the right ventricle dilates the valve may be insufficient. Disturbances of the Heart 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 Later the usual series of disturbances from dilatation of the right ventricle occurs. Disturbances of the Heart Another union is that by the pulmonary artery, and is effected when that vessel divides into two branches after its escape from the right ventricle of the heart. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Unless the right ventricle is found later to be in trouble, there is no treatment for this condition. Disturbances of the Heart 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 Sooner or later, if this lesion is actually present, the right ventricle dilates and cyanosis and dyspnea occur. Disturbances of the Heart This causes passive congestion of the lungs, and the right ventricle finds that it must labor to overcome the increased resistance in the pulmonary artery, and hypertrophies to overcome this increased amount of work. Disturbances of the Heart So that there is also reason to believe that when the heart contracts, the blood is regularly propelled by the canal or passage indicated from the right ventricle into the aorta. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Anything that increases the resistance in the lungs causes the right ventricle to hypertrophy. Disturbances of the Heart If, on the other hand, the right ventricle becomes insufficient, or is insufficient, the second pulmonic sound is weaker than normal, and the prognosis is bad. Disturbances of the Heart It has also been shown that extrasystoles, meaning irregular heart action, may be caused by impulses originating at the apex, at the base or at some point in the right ventricle. Disturbances of the Heart |
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