心脏毛细血管床的范围。
THE EXTENT OF THE CAPILLARY BED OF THE HEART.
机构信息
Thorndike Memorial Laboratory of the Boston City Hospital, and the Department of Medicine, Harvard Medical School, Boston.
出版信息
J Exp Med. 1928 Jan 31;47(2):273-90. doi: 10.1084/jem.47.2.273.
By means of injections made into the coronary arteries of beating hearts it has been possible to determine the number of capillaries in the normal heart muscle. This study has shown a very rich blood supply with an average of approximately one capillary for each muscle fibre in the ventricular walls and papillary muscles, and a less abundant supply in the auricular muscle and Purkinje system. The number of capillaries per sq. mm. of ventricular wall or papillary muscle is about twice that found by Krogh in skeletal muscle. Capillaries were not found constantly in the valves of hearts in which there was apparently a complete injection of the capillary bed. The method described for injecting the capillaries of the heart also provides a means of studying the blood supply to the muscle, valves and aortic wall in pathological hearts.
通过向跳动的心脏冠状动脉内注射，已经有可能确定正常心肌中的毛细血管数量。这项研究表明，心室壁和乳头肌中的每根肌肉纤维平均有大约一个毛细血管，而在心房肌肉和浦肯野系统中的供应则较少。心室壁或乳头肌每平方毫米的毛细血管数量大约是克氏在骨骼肌中发现的两倍。在那些显然完全注射了毛细血管床的心脏瓣膜中，没有发现毛细血管。本文描述的心脏毛细血管注射方法也为研究病理心脏的肌肉、瓣膜和主动脉壁的血液供应提供了一种手段。
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