The Man Who Discovered the Circulation of the Blood (Classic Reprint)


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Excerpt from The Man Who Discovered the Circulation of the Blood The oldest idea of all was that only the veins contain blood, the arteries air. Galen had corrected this latter mistake by tying a cord above and one below a length of nrterv and cutting out the piece nimve and below the ligatures: blood, of course, and not air was found inside. It was thought that blood went up and down the veins like the ebb and flow of a tide, that crude blood was made in the liver and taken to the heart to be purified. The heat supposed to be produced in this process was. Believed to make it necessary to cool the heart by drawing in air in the act of breathing, and this was regarded as the function of respiration even as late as the time of Heller, that is, the middle of the eighteenth century. The pulse or opening up of the arteries was te garded as an active thing on their part, blood not being forced into them by the heart but drawn into them hiv their own suction like o bellows draw in air. But Harvey said the heart is the pump, and the arteries are filled by its forcing its blood into them. 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.




William Harvey


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A History of the Discovery of the Circulation of the Blood (Classic Reprint)


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Excerpt from A History of the Discovery of the Circulation of the Blood A desire for information in regard to the history of a science, as naturally follows its study as does the wish to know something of the countries through which we travel, or of the biography of authors whose works have instructed or amused us. To medical men the satisfaction of this desire is attend ed with something more than the mere gratification of curiosity; lessons of great practical value are to be derived from the study of the history of med icine. As we observe the slow and uncertain man ner in which our present knowledge has been at tained, we shall feel that our progress is likely also to be gradual, and that the great discoveries of the future are to be made, like those of the past, by patient and long continued observation, judicious experiment and careful generalization. As we see the doctrines of great teachers, which were received by their followers as infallible, shown one after the other to be erroneous, we may learn caution in regard to resting our efforts with the present attain ments of science. For these and many other rea sons the study of the history of medicine is valua ble to the practitioner, and has always been re commended to the student, by those best qualified to judge, as an important part of his professional education. 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.







William Harvey and The Discovery of The Circulation of The Blood


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William Harvey and the Discovery of the Circulation of the Blood - Revolutionizing Medicine: William Harvey's Groundbreaking Discovery of Blood Circulation: Immerse yourself in the captivating world of medical discovery with William Harvey and the Discovery of the Circulation of the Blood. This book takes you on a journey through the groundbreaking work of William Harvey, who revolutionized our understanding of the human body and its circulatory system. Explore the historical context, scientific advancements, and enduring impact of Harvey's remarkable discovery, which laid the foundation for modern medicine. Key Aspects of the Book William Harvey and the Discovery of the Circulation of the Blood: Scientific Exploration: Delve into the meticulous research and experimentation conducted by William Harvey as he unraveled the mysteries of blood circulation, challenging prevailing theories of his time. Paradigm Shift in Medicine: Understand the profound impact of Harvey's discovery, which transformed the field of medicine and paved the way for further advancements in anatomy, physiology, and cardiology. Legacy and Influence: Examine how Harvey's contributions continue to shape our understanding of the human body, cardiovascular health, and medical practice, leaving an enduring legacy in the history of science. In William Harvey and the Discovery of the Circulation of the Blood, readers are introduced to the pioneering work of William Harvey, a trailblazing physician and scientist. The book showcases Harvey's remarkable contributions and their transformative effect on the field of medicine, solidifying his status as one of the most influential figures in scientific history.




History of the Discovery of the Circulation of the Blood (Classic Reprint)


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Excerpt from History of the Discovery of the Circulation of the Blood The name of Herophilus ought to be familiar to all students of anatomy, as many parts of the human body, such as the Choroid Plexus, the Torcular Herophili, the Calamus Scripto rius, the Duodenum, etc., were first described by him. The most important contribution that he made to our knowledge of the vascular system was the demonstration of the isochronism of the pulsations of the arteries and of the beating of the heart, and of the latter being the cause of the former, a phenomena that had already been imperfectly referred to by Hippocrates and Aris totle. Herophilus noticed also the difference in the thickness of the walls of the arteries and of the veins, and described the vessels connecting the heart and the lungs, distinguishing the pul monary artery from the pulmonary vein, designating the former as the arterial vein and the latter as the venous artery. 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.




The Circulation of the Blood


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If the pulsations of the arteries fan and refrigerate the several parts of the body as the lungs do the heart, how comes it, as is commonly said, that the arteries carry the vital blood into the different parts, abundantly charged with vital spirits, which cherish the heat of these parts, sustain them when asleep, and recruit them when exhausted? and how should it happen that, if you tie the arteries, immediately the parts not only become torpid, and frigid, and look pale, but at length cease even to be nourished?-from the IntroductionThis seminal work of medical literature, first published in 1628, spells out in clear, lucid language how the human heart pumps blood around the body via its own exclusive circulatory route. What seems like an obvious concept to us today was in fact quite revolutionary at the time: Harvey's defiance of the medical "common knowledge" of his time laid the groundwork for all modern investigations of the circulatory system, and may be the most momentous discovery of 17th-century medicine.This important volume also includes a series of letters from Harvey to his medical colleagues in which he defends his then-astonishing theories, plus Harvey's "The Anatomy of Thomas Parr," a fascinating 1635 report on the dissection of the corpse of "a poor farmer of extremely advanced age."OF INTEREST TO: readers of scientific history, medical studentsBritish naturalist, anatomist, and doctor WILLIAM HARVEY (1578-1657) was educated at Cambridge, Canterbury, and Padua, and became a Fellow of the Royal College of Physicians in 1607. He served as court physician to both King James I and King Charles I.




Harvey's Views on the Use of the Circulation of the Blood


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Example in this ebook CHAPTER I HARVEY'S ATTITUDE TOWARD THE QUESTION OF THE USE OF THE CIRCULATION It is a happy moment for a physiologist when the train which is bearing him across the luxuriant plain of Venetia stops at the cry of "Padova!" If he have not informed himself too thoroughly about the sights which he will see at the Paduan University, he will enjoy his own surprise when he is ushered into the Anatomical Theater of Fabricius ab Aquapendente—a room in which standing-places rise steeply, tier above tier, entirely around a small central oval pit. Looking down into this, as he leans upon the rail, the traveler will realize with sudden pleasure that William Harvey, when a medical student, may often have leaned upon the self-same rail to see Fabricius demonstrate the anatomy of man. The place looks fit to have been a nursery of object-teachers, for it is too small to hold a pompous cathedra; and the veteran to whose Latin the young Englishman listened must have stood directly beside the dead body. To an American, musing there alone, the closing years of the sixteenth century, the last years of Queen Elizabeth of England, which seem so remote to him when at home, are but as yesterday. Recent, indeed, in the history of medicine is the year 1602, when Harvey received his doctor's degree at Padua and returned to London; but for all that we are right in feeling that our day is far removed from his. The tireless progress of modern times has swept on at the charging pace; but in Harvey's time books were still a living force which had been written in days five and six times as far removed from the student of Padua as he from us. Galen, the Greek who practised medicine at imperial Rome in the second century of the Christian era; Aristotle, who had been the tutor of Alexander the Great five hundred years before Galen, when Rome was but a petty state warring with her Italian neighbors;—these ancients were still great working authorities in Harvey's day. It is against this persistent glow of the Greek thought that Harvey stands out so vividly as the first great modern figure in physiology. But it rather heightens than lowers his achievement that it was by the ancient glow that he saw his way forward, admiring the past, but not dazzled by it. In his old age he bade a young student "goe to the fountain head and read Aristotle, Cicero, Avicenna"; and in talk with the same youth Harvey called the moderns by a name so roughly contemptuous that it will not bear repeating. Yet in his old age, in the very act of extolling the ancients, he wrote as follows:— "But while we acquiesce in their discoveries, and believe, such is our sloth, that nothing further can be found out, the lively acuteness of our genius languishes and we put out the torch which they have handed on to us." To be continue in this ebook




History of the Discovery of the Circulation of the Blood: A Lecture (Classic Reprint)


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Excerpt from History of the Discovery of the Circulation of the Blood: A Lecture 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.