心肌肥大。心肌的光镜检查结果。血液供应。心室扩张与心力衰竭。

Myocardial hypertrophy. Light microscopic findings on the myocardium. Blood supply. Ventricular dilatation and heart failure.

作者信息

Hort W

出版信息

Basic Res Cardiol. 1977 Mar-Jun;72(2-3):203-8. doi: 10.1007/BF01906362.

DOI:10.1007/BF01906362

Abstract

The heart is an organ with an almost constant number of muscle cells under physiological conditions. But beyond the critical heart weight (500 g) there is an increase in the number of muscle fibers (hyperplasia) and a similar increase in the number of capillaries. The relation of 1 capillary to 1 muscle fiber remains constant. During physiological growth there is a rather close correlation between the growth of human coronary arteries and the growth of the myocardium. Under pathological conditions the growth of coronary arteries is slower than that of the myocardium. In many animal species investigated up to now there is a rather close correlation between the diameter of coronary arteries and the diameter of the heart. As a rule, hearts with chronic insufficiency are dilated. They work under unfavourable geometrical conditions. The post-mortem ventricular volume is influenced to a very great degree by rigor mortis.

摘要

在生理条件下，心脏是一个肌肉细胞数量几乎恒定的器官。但超过临界心脏重量（500克）时，肌纤维数量会增加（增生），毛细血管数量也会有类似增加。1条毛细血管与1条肌纤维的关系保持恒定。在生理生长过程中，人类冠状动脉的生长与心肌的生长之间存在相当密切的相关性。在病理条件下，冠状动脉的生长比心肌的生长慢。在迄今为止研究的许多动物物种中，冠状动脉直径与心脏直径之间存在相当密切的相关性。通常，患有慢性功能不全的心脏会扩张。它们在不利的几何条件下工作。死后心室容积受尸僵影响很大。