| 单词 | pulmonary artery |
| 例句 | A necropsy revealed Mozart bled to death after being struck by a pellet that traveled between two ribs and nicked a pulmonary artery. Shooting of Salma Hayek's Dog Was 'Justified,' Police Say 2016-03-01T05:00:00Z The pulmonary arteries will carry deoxygenated blood to the lungs and the systemic arteries will carry oxygenated blood to the rest of the body. Fundamentals of Biology 2015-01-01T00:00:00Z The ventricles contract together forcing blood into the aorta and the pulmonary arteries. Concepts of Biology 2013-04-25T00:00:00Z The Cleveland Clinic website describes the condition as a blood clot in the lung that restricts blood flow and lowers oxygen levels in the lungs while increasing blood pressure in pulmonary arteries. Butler’s Jalen Thomas out indefinitely with heart issue 2022-10-10T04:00:00Z The blood returning to the lungs through the pulmonary arteries has a venous PO2 = 40 mm Hg and a PCO 2 = 45 mm Hg. Biology for AP Courses 2022-06-09T00:00:00Z 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 The bullet had struck a pulmonary artery and the president’s heart was pumping blood into his chest under pressure, causing the left lung to collapse and collapsing veins, preventing blood from returning to the heart. Man gives untold perspective on Reagan assassination attempt 2021-04-03T04:00:00Z The wound perforated his heart, aorta, pulmonary artery and right lung, according to the complaint. Fundraising initiatives for Kyle Rittenhouse, accused Kenosha shooter, surface online 2020-08-29T04:00:00Z On top of that, Korbin was born with an inefficient aortic valve, causing blood to redirect into places it shouldn’t; Everett was born with a narrow pulmonary artery. Two Florida boys who both had open-heart surgeries form bond 2020-03-29T04:00:00Z 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 However, a shunt within the pulmonary artery, the ductus arteriosus, diverts a portion of this blood into the aorta. Anatomy and Physiology 2013-06-19T00:00:00Z The primary arteries, the aorta and the pulmonary artery, are transposed. Sturgis couple’s infant son faces more heart surgery 2019-12-16T05:00:00Z Urbanski attacked him, severing Collins’s pulmonary artery with a single thrust of the knife, prosecutors said, and the knife later was found in his pants pocket. Man accused in U-Md. hate-crime killing ‘poisoned his mind’ with racist images, prosecutors argue 2019-12-11T05:00:00Z Just over a year later, the baby’s pulmonary artery suddenly began to narrow again - and “his body completely undid” the progress of that surgery, Sewell explained. Two Florida boys who both had open-heart surgeries form bond 2020-03-29T04:00:00Z Blood could not enter the pulmonary artery; therefore, it could not reach the heart. Biology for AP Courses 2022-06-09T00:00:00Z The pulmonary artery is an artery that arises from the pulmonary trunk and carries deoxygenated, arterial blood to the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z Below the clamp, he cut through the aorta and finally the pulmonary artery, which runs heart to lung. A terrible crime, a patient waiting for a transplant: The tragic, redemptive journey of one heart. 2019-09-30T04:00:00Z The pressure-sensing device is placed in the pulmonary artery and transmits data to physicians. Man's 'cold' was actually massive heart attack 2019-03-02T05:00:00Z Then they bring in the porcine heart, and then you do your anastomosis, it’s the left atrium to right atrium, the pulmonary artery, and then you remove the air. Listen: Pig-heart transplants in baboons work for longer than ever before 2018-12-04T05:00:00Z Blood could not enter the pulmonary artery; therefore, it could not reach the lungs. Biology for AP Courses 2022-06-09T00:00:00Z The blood in the pulmonary artery branches is low in oxygen but relatively high in carbon dioxide. Anatomy and Physiology 2013-06-19T00:00:00Z "He was born without a pulmonary artery," Green said. Sacramento Boy’s Wish Fulfilled by Becoming a Ghostbuster 2018-10-23T04:00:00Z A venous load of a drug, like heroin, has to first work its way back to the heart, then go by pulmonary artery to the lungs, then by carotid artery to the brain. 9 Things That Matter about Psychoactive Drugs 2018-05-08T04:00:00Z Once inside the rat, the worms make their way to the rat’s brain to partially mature, then on to the pulmonary arteries that lead from the heart to the lungs. Why You Shouldn’t Eat a Slug (In Case You Need Reasons) 2018-03-16T04:00:00Z 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 To prevent confusion between these vessels, it is important to refer to the vessel exiting the heart as the pulmonary trunk, rather than also calling it a pulmonary artery. 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 Because of pulmonary atresia, her pulmonary arteries were shrunken and she suffered pulmonary stenosis, which is the lack of a major artery. Kittery mom fears daughter won’t have health coverage 2017-05-08T04:00:00Z Some might be removed, the doctors said, but others, like the one in his pulmonary artery and the two in his spinal column, are simply too risky. Teen recovers after West Liberty school shooting 2017-05-06T04:00:00Z Born without a pulmonary artery, doctors placed limits on her physical activities early on that she still adheres to at 25. Lincoln skate park closes after more than 60 years 2017-04-30T04:00:00Z The pulmonary arteries in turn branch many times within the lung, forming a series of smaller arteries and arterioles that eventually lead to the pulmonary capillaries. Anatomy and Physiology 2013-06-19T00:00:00Z Defects in the septums, the walls that separate the heart’s chambers, were the most common, but all parts of the heart were affected — the aorta, pulmonary artery, valves and ventricles. Pre-eclampsia Tied to Heart Defects in Newborns 2015-10-28T04:00:00Z Brinkley was born with a hole in between the two chambers of his heart and a narrow pulmonary artery. Boy with Down syndrome to be featured in national campaign 2015-09-06T04:00:00Z The Chicago Tribune reported that the cause of death was a tear in his pulmonary artery caused by chronic obstructive pulmonary disease. Minnie Minoso, ‘Cuban Comet’ of Chicago White Sox, dies 2015-03-02T05:00:00Z He reopened some vessels from her legs, fixed a problem with a stent already in place and used a balloon angioplasty to open up the pulmonary artery. A rosary, a kiss, a surgeon and a child’s heart 2014-12-15T05:00:00Z 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 pulmonary valve connects the heart to the pulmonary artery, which carries blood from the heart to the lungs. Skin Cells Used to Create Heart Valve for Growing Kids 2014-09-03T04:00:00Z He underwent surgery in Peoria to correct abnormal blood flow between the aorta and pulmonary artery. EXCHANGE: Premature baby defies odds, comes home 2014-08-31T04:00:00Z The CardioMEMSHF system measures pulmonary artery pressure and heart rates and sends this information remotely to the patient's doctors, the FDA said Wednesday in a news release. Remote Monitoring Device Approved for Heart Patients 2014-05-29T04:00:00Z Opsumit belongs to a class of drugs known as endothelin receptor antagonists, which relax the pulmonary arteries and decrease that pressure. Actelion hits six-year high after favorable FDA approval for drug 2013-10-21T08:55:39Z 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 Further, LTB induced proliferation and hypertrophy of human pulmonary artery smooth muscle cells. [Research Articles] Blocking Macrophage Leukotriene B4 Prevents Endothelial Injury and Reverses Pulmonary Hypertension 2013-08-28T18:25:19.997Z It was Lao Lan who invented the scientific method of forcing pressurized water into the pulmonary arteries of slaughtered animals. Mo Yan: “Bull.” 2012-11-19T05:00:00Z A first- or second-year physician, I was treating a patient with a serious lung impairment caused by a blood clot in his pulmonary artery. Medicare's Payment System Harms Medical Innovation 2012-05-23T00:17:36Z The aortic and pulmonary valves are laid down in the ventral aorta, before it is divided into aorta and pulmonary artery, as four endocardial cushions; anterior, posterior and two lateral. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z The pulmonary artery provides deoxygenated blood to the capillaries that form respiratory membranes with the alveoli, and the pulmonary veins return newly oxygenated blood to the heart for further transport throughout the body. Anatomy and Physiology 2013-06-19T00:00:00Z There is, however, always danger of a portion of the thrombus becoming detached and producing embolism of the pulmonary artery. 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 The device is designed to monitor blood pressure in the pulmonary artery, and wirelessly transmit that data to a CardioMems website for review by a patient’s doctor. CardioMems Fails to Win FDA Panel Backing for Heart Sensor 2011-12-09T00:28:02Z To the left of this it is continued up into the root of the pulmonary artery, and this part is known as the infundibulum. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z 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 The clot in the pulmonary artery was throughout firm, fibrous, and yellowish. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Aneurysms, single or multiple, have been found in the arteries of children, and even the pulmonary artery may show sclerotic changes. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Death was due to the obstruction of the circulation by a clot of blood in the pulmonary artery. Norfolk Annals A Chronological Record of Remarkable Events in the Nineteeth Century, Vol. 2 2011-05-25T02:00:19.650Z This cardiac monitor uses electromechanical dynamics to detect crucial pressure levels in a patient's pulmonary artery and relay those readings to physicians wirelessly, obviating the need for clunky moving parts or external power sources. Wireless Heart Monitor Fine-Tunes Cardiac-Failure Treatment 2011-02-10T22:45:00.310Z The pulmonary artery branches multiple times as it follows the bronchi, and each branch becomes progressively smaller in diameter. Anatomy and Physiology 2013-06-19T00:00:00Z These clots are often voluminous in the right heart, semi-fibrinous, and extend into the pulmonary artery and great venous trunks, which are enormously enlarged. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Some evidence is adduced to bear on this point, however, in the fact that sclerosis of the pulmonary artery follows often upon mitral stenosis. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Thelin is sold in the European Union, Canada, and Australia as an oral treatment for severe pulmonary arterial hypertension, or high blood pressure in the pulmonary artery. FDA orders lower doses in prescription painkillers 2011-01-13T21:50:00Z It is then dropped into the pulmonary artery, and blood pressure helps nestle it into place. Wireless Heart Monitor Fine-Tunes Cardiac-Failure Treatment 2011-02-10T22:45:00.310Z As they near the alveoli, the pulmonary arteries become the pulmonary capillary network. Anatomy and Physiology 2013-06-19T00:00:00Z Sudden suffocative symptoms, with open air-passages, suggest embolism of the larger branches of the pulmonary artery. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z There have been a number of cases of sclerosis of the pulmonary arteries, either alone, or associated with general systemic arteriosclerosis. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z 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 Ms. Borakove said that fatal bullet struck Mr. Soto in the area of his left collar bone and injured his lungs, his pulmonary artery, his heart, his diaphragm, his pancreas and a kidney. Police Bullet Killed Man in Harlem 2010-08-09T20:29:00Z The resulting increased hydrostatic pressure within pulmonary capillaries, as blood is still coming in from the pulmonary arteries, causes fluid to be pushed out of them and into lung tissues. Anatomy and Physiology 2013-06-19T00:00:00Z In his observation the white bodies were adherent to the red clots, and were with them drawn from the pulmonary artery. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z The cases thus far described have revealed widespread thickening of the pulmonary arteries. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Two great trunks, the aorta and pulmonary artery, leave the heart and divide again and again, until they become minute vessels to which the name of arterioles is given. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" The heart has three cavities; in the larger animals it communicates with the windpipe, or the ramifications of the pulmonary artery receive the breath in the lungs and carry it to the heart. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Albert followed it, watching as it passed into the pulmonary artery, tracing it out through the smaller vessels until it stopped squarely across a junction of two arterioles. Insidekick When, however, pus or septic matters obtain access to a thrombus, it undergoes rapid disintegration, and the particles get swept away into the circulation until arrested in the ramifications of the pulmonary artery. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z The blood, while passing over the air-cells in the lungs, in the minute divisions of the pulmonary artery, is changed from a bluish color to a bright red. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) In the first part of the aorta, pulmonary artery and arteries of the retina there is no muscular coat. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" The blood which is found in the pulmonary artery has the same dark purple colour with that in the vena cava, while that in the pulmonary vein resembles the aortal blood in its brightness. Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease The semilunar valves of the pulmonary artery had their bases slightly ossified, and the remaining part thickened. Cases of Organic Diseases of the Heart Vaso-motor nerve-paralysis, acting at the same time on the pulmonary artery and arterioles, and on other large arterial trunks, probably gives rise to the murmurs heard in them. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z At the extremity of the divisions of the aorta, as well as the pulmonary artery, are found capillary vessels. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) They are separated by a partition, and are connected with the great arteries—the pulmonary artery and the aorta—by which they send blood to all parts of the body. Special Report on Diseases of the Horse This work describes the aorta and the pulmonary artery as well as the three valves at the root of each of the great vessels, and it speaks of experiments to test their validity. 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 The tricuspid valves, and the valves of the pulmonary artery, had lost somewhat of their transparency, and were a little thickened, though not materially. Cases of Organic Diseases of the Heart The pulmonary artery and its branches are also empty, although the right side of the heart may be filled with dark and soft coagula. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Give the difference in the functions of the pulmonary artery and aorta. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) At the mouth of the aorta and at the mouth of the pulmonary artery is an arrangement of valves in each case which prevents the reflux of blood into the ventricles. Special Report on Diseases of the Horse From the heart, run the pulmonary arteries, marked p a. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School The tricuspid valves had lost their smoothness and transparency; the semilunar valves of the pulmonary artery were cartilaginous at their bases. Cases of Organic Diseases of the Heart 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 Each lung is retained in its place by its root, which is formed by the pulmonary arteries, pulmonary veins, and bronchial tubes, together with the bronchial vessels and pulmonary nerves. 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 When the two vena cavas empty the blood into the heart, the latter contracts, and sends this blood, through these pulmonary arteries, into the lungs. A Treatise on Domestic Economy For the Use of Young Ladies at Home and at School The semilunar valves of the pulmonary artery and aorta were unusually small, and their bases cartilaginous. Cases of Organic Diseases of the Heart 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 Through the pulmonary artery the dark, impure blood is carried to the air-cells of the lungs. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) The right cavities of the heart, with the venæ cavæ, or systemic veins, the pulmonary artery, contain dark blood, which must be transmitted through the lungs for renovation. Special Report on Diseases of the Horse 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 The tricuspid valves and the semilunar valves of the pulmonary artery had lost their healthy transparency, but were not otherwise diseased. Cases of Organic Diseases of the Heart The fourth loses its connection with the dorsal aorta, and sends a branch to the developing lung, which becomes the pulmonary artery. Text Book of Biology, Part 1: Vertebrata L, The semilunar valves of the pulmonary artery. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) The arteries, commencing in two great trunks, the aorta and the pulmonary artery, undergo division, as in the branching of a tree. Special Report on Diseases of the Horse When this is full, the muscles in the wall of the ventricle contract, the valve flaps fly up, and the blood is squirted out through the pulmonary artery to the lungs. A Handbook of Health The pulmonary artery contained only a small quantity of blood. An Essay on the Influence of Tobacco upon Life and Health The details of the branching of the pulmonary artery and the pulmonary veins need not detain us now. Text Book of Biology, Part 1: Vertebrata The right semilunar valve is situated around the opening of the right ventricle into the pulmonary artery. Physiology and Hygiene for Secondary Schools When a fibrinous coagulum is carried into the pulmonary artery from the right side of the heart, the indications are a swelling and infiltration of the lungs and pulmonary apoplexy. Special Report on Diseases of the Horse At the entrance to the pulmonary artery are shown two of the pockets of the valve, the third pocket having been cut away with the front side of the artery. A Handbook of Health 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 These arteries and veins are distinct from the pulmonary arteries and veins. Angelic Wisdom Concerning the Divine Love and the Divine Wisdom Demonstrate the trachea, bronchi, and the bronchial tubes, and the general arrangement of pulmonary arteries and veins. Physiology and Hygiene for Secondary Schools The arterial system consists of the aortal and the pulmonary artery, which are attended through their whole course with their correspondent veins. Zoonomia, Vol. I Or, the Laws of Organic Life 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 immediate cause of HIS LORDSHIP'S death was a wound of the left pulmonary artery, which poured out its blood into the cavity of the chest. Authentic Narrative of the Death of Lord Nelson This it does through the pulmonary arteries and veins. Angelic Wisdom Concerning the Divine Love and the Divine Wisdom Make an incision half an inch to the right of this groove and cut toward the base of the heart until the pulmonary artery is laid open. Physiology and Hygiene for Secondary Schools The weapon had partially divided both the aorta and the pulmonary artery—the main arteries of the body. John Thorndyke's Cases related by Christopher Jervis and edited by R. Austin Freeman 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 pulmonary artery carries the impure blood to the lungs, and the pulmonary veins carry the pure blood back from the lungs. Common Diseases of Farm Animals Examine the large vessels, and, by reference to the text and illustrations, make quite certain which are the aorta, the pulmonary artery, the superior and inferior venæ cavæ, and the pulmonary veins. A Practical Physiology The blood leaves the heart by the pulmonary artery and returns by the pulmonary veins. Physiology and Hygiene for Secondary Schools Thence it is driven past the semilunar valves, through the pulmonary artery, to the lungs. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics The patient was in profound collapse, but steadily reacted and was discharged cured on the forty-fifth day, with no perceptible pulse at the wrist and only a feeble beat in the pulmonary artery. 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 Continue to lay open the ventricle towards the pulmonary artery until the semilunar valves come into view. A Practical Physiology The branches of the pulmonary artery lie alongside of, and divide similarly to, the bronchial tubes. Physiology and Hygiene for Secondary Schools Between the pulmonary arteries and veins is the capillary system of the small or pulmonary circulation. The Evolution of Man — Volume 2 "Part of this clot has been detached by exertion, or possibly by rubbing, and, travelling upwards, has become impacted in one of the pulmonary arteries." Doctor Therne 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 The pulmonary artery may now be opened from above so as to display the upper surfaces of the semilunar valves. A Practical Physiology It is as if to the two trunks already mentioned a third were superadded, a kind of arterial canal, carried obliquely from the pulmonary artery, to perforate and terminate in the great artery or aorta. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Letters as in Figure 2.364. s subclavian arteries, p pulmonary artery, p apostrophe branches of same, c apostrophe outer carotid, c double apostrophe inner carotid. The Evolution of Man — Volume 2 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 It may also mean that embolism has taken place, and the pulmonary artery is blocked, withholding blood from the lungs. The Grey Room 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 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) 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 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 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 The blood is now forced through the open semilunar valves into the pulmonary artery. A Practical Physiology There are, as everyone knows, three sigmoid or semilunar valves situated at the orifice of the pulmonary artery, which effectually prevent the blood sent into the vessel from returning into the cavity of the heart. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) These veins start from very minute vessels the continuation of the capillaries of the pulmonary artery. A Practical Physiology 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 The second sound is, without doubt, caused by the sudden closure of the semilunar valves of the pulmonary artery and the aorta, at the moment when the contraction of the ventricles is completed. A Practical Physiology The pulmonary artery, bringing venous blood, by its alternate expansion and recoil, draws the blood along until it reaches the pulmonary capillaries. A Practical Physiology 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) Now, as we have seen, the change from venous to arterial blood occurs in the capillaries of the lungs, the only means of communication between the pulmonary arteries and the pulmonary veins. A Practical Physiology Each lobule has a branch of the pulmonary artery entering it, and a similar rootlet of the pulmonary vein leaving it. A Practical Physiology In the connective tissue run capillary vessels belonging to the pulmonary artery and veins. A Practical Physiology Thus the blood brought to the lungs by the pulmonary arteries leaves the lungs entirely different in character and appearance. A Practical Physiology 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) Or wherefore is there a pulse in the pulmonary artery? The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) For the same reason the pulmonary artery not only has the structure of an artery, but it does not differ so widely from the veins in the thickness of its walls as does the aorta. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) Wherefore, in fine, the pulmonary artery has the structure of an artery, and the pulmonary veins have the structure of veins. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The root of the lung, as it is called, is formed by the bronchi, two pulmonary arteries, and two pulmonary veins. A Practical Physiology |
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