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Author: John Langdon Down
Publisher: Forgotten Books
ISBN: 9780267141005
Category : Health & Fitness
Languages : en
Pages : 110
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Book Description
Excerpt from The Heart and Its Function Notwithstanding the many millions of years which our world and race have, according to some, already existed, the discovery of the circulation of the blood is but a thing of yesterday. From some passages in his work, De Trinitatis Erroribus, published in 1531, Servetus would seem to have been fully aware of the lesser or pulmo nary circulation. But it was not till 1628 that the doctrine of the circulation of the blood through the system generally was actually published by Dr. William Harvey, though indeed he 'had taught it publicly from the year 1619. It was not, however, till 1661, more than thirty years subsequently, that the Circulation of the blood was actually demonstrated by means of the micro scope, by Malpighi, so that this important fact has been known for little more than two centuries. The whole quantity of blood in the body has been reckoned at about one-fourteenth part of the weight of the body; the blood in the body of a man weighing fourteen stone will therefore amount to one stone, or fourteen pounds. If we accept this as a probable average of the weight of blood in the body, then as fourteen pounds amount to 224 ounces, and as the left ventricle contains, as we suppose, only 3 ounces, it follows that the whole blood of a man weighing 196 lbs. Passes through his left ventricle in nearly 75 (74-6) Of its systoles or contractions. And as we suppose the heart to contract only 70 times in a minute, then the whole of the blood of such a man passes through his heart 48 times in one hour, or 1152 times in one day. Of course the length of time that the whole of the blood in a man takes to pass through his heart depends upon three factors, - first, the actual amount of blood he possesses; second, the size of his ventricular cavity; and thirdly, the rate of its pulsation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: John Langdon Down
Publisher: Forgotten Books
ISBN: 9780267141005
Category : Health & Fitness
Languages : en
Pages : 110
Get Book Here
Book Description
Excerpt from The Heart and Its Function Notwithstanding the many millions of years which our world and race have, according to some, already existed, the discovery of the circulation of the blood is but a thing of yesterday. From some passages in his work, De Trinitatis Erroribus, published in 1531, Servetus would seem to have been fully aware of the lesser or pulmo nary circulation. But it was not till 1628 that the doctrine of the circulation of the blood through the system generally was actually published by Dr. William Harvey, though indeed he 'had taught it publicly from the year 1619. It was not, however, till 1661, more than thirty years subsequently, that the Circulation of the blood was actually demonstrated by means of the micro scope, by Malpighi, so that this important fact has been known for little more than two centuries. The whole quantity of blood in the body has been reckoned at about one-fourteenth part of the weight of the body; the blood in the body of a man weighing fourteen stone will therefore amount to one stone, or fourteen pounds. If we accept this as a probable average of the weight of blood in the body, then as fourteen pounds amount to 224 ounces, and as the left ventricle contains, as we suppose, only 3 ounces, it follows that the whole blood of a man weighing 196 lbs. Passes through his left ventricle in nearly 75 (74-6) Of its systoles or contractions. And as we suppose the heart to contract only 70 times in a minute, then the whole of the blood of such a man passes through his heart 48 times in one hour, or 1152 times in one day. Of course the length of time that the whole of the blood in a man takes to pass through his heart depends upon three factors, - first, the actual amount of blood he possesses; second, the size of his ventricular cavity; and thirdly, the rate of its pulsation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: John Langdon Down
Publisher: Legare Street Press
ISBN: 9781020830594
Category :
Languages : en
Pages : 0
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Book Description
In this groundbreaking book, John Langdon Down provides a detailed analysis of the structure and function of the human heart. Written in accessible language, this book is an essential resource for anyone interested in human anatomy and physiology. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
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Book Description
Author:
Publisher:
ISBN:
Category : Heart
Languages : en
Pages : 95
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Book Description
Author: Louis Gross
Publisher: Forgotten Books
ISBN: 9780265275283
Category : Science
Languages : en
Pages : 192
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Book Description
Excerpt from The Blood Supply to the Heart: In Its Anatomical and Clinical Aspects The blood supply to the neuromuscular system was worked out with care. It was found that the anatomy of the neuro muscular circulatory structure could be intelligently correlated with functional derangements such as presented by classical cases found in the literature. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: J. Milner Fothergill
Publisher: Forgotten Books
ISBN: 9781334735691
Category : Medical
Languages : en
Pages : 394
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Book Description
Excerpt from The Heart and Its Diseases: With Their Treatment The Heart - Its Evolution - Working - Nutrition and Blood-supply - Its Sleep - Nerve Supply and Mode of Action. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: John Langdon Down
Publisher:
ISBN: 9781297097126
Category :
Languages : en
Pages : 98
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Horance Lance Flint
Publisher: Forgotten Books
ISBN: 9780656324040
Category : Science
Languages : en
Pages : 206
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Book Description
Excerpt from The Heart: Old and New Views As concerns systolic murmurs, the subject of the last chapter, I think there is more to be said; some of it I have, however, published already, and I will not repeat it here. The central point, however, is whether or no the particular systolic murmur signifies mitral re gurgitation If it does, then energy is running to waste; and unless slight and stationary in degree must tell, sooner or later. The organ, however well and long it may run, did not start at scratch. The reader will understand that Dr. Flint does not write this book merely as an historian or compiler; he writes not as one of the scribes; his own experience of heart problems during the war was considerable, so that what he says may be taken as the teaching of an expert. I cordially wish success to his little work. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Joshua Gill
Publisher: Wentworth Press
ISBN: 9781362782322
Category : History
Languages : en
Pages : 120
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Angelo Mosso
Publisher: BEYOND BOOKS HUB
ISBN:
Category : Fiction
Languages : en
Pages : 213
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Book Description
Fear (Classic Reprint) and FEAR by Angelo Mosso are insightful explorations into the psychology of fear. Utilizing both anecdotal evidence and scientific analysis, Mosso provides an in-depth look at this powerful emotion. Whether you're a psychology student, a professional, or simply a curious reader, Mosso's works offer valuable insights into human emotion and behavior. Don't miss the opportunity to explore the intricate workings of the human mind with Fear (Classic Reprint) and FEAR. Order your copies today!