Excerpt from The Edinburgh Medical Journal, 1907, Vol. 22 Harvey made no attempt, even in that chapter which forms the most beautiful part of his immortal work, to explain the causes of the pulsation of the heart, and we have to pass on till a period a hundred and thirty years later before we encounter any attempt to define the problem. Cardiac movements were originally attributed by Albrecht von Haller to an inherent power of contraction belonging to the heart itself. It has been claimed that he regarded the automatic ...
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Excerpt from The Edinburgh Medical Journal, 1907, Vol. 22 Harvey made no attempt, even in that chapter which forms the most beautiful part of his immortal work, to explain the causes of the pulsation of the heart, and we have to pass on till a period a hundred and thirty years later before we encounter any attempt to define the problem. Cardiac movements were originally attributed by Albrecht von Haller to an inherent power of contraction belonging to the heart itself. It has been claimed that he regarded the automatic movements of the heart as due to an inherent faculty of the heart muscle. This, however, is not specifically stated, and, as the intimate nervous connections were then unknown, it is probable that the intrinsic nature of the movements did not particularly trouble the mind of that great observer. Senac also regarded the pulsation of the heart as due to special cardiac activities, but he at the same time laid greater stress upon external sources of interference. With these vague views, pathologists as well as physicians were content until the middle of last century. The discovery of the ganglia at the junction of the sinus and auricle by Remak, of those between the auricle and ventricle by Bidder, and of those between the two ventricles by Ludwig, necessarily opened up the possibility of some definite explanation, and the formal presentation of the views which resulted was given by Volkmann, who enunciated the theory that the pulsation of the heart was due to the auto matic action of its intrinsic ganglia. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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