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心脏为一工作量很大，而又常处活动状态的器官，因此心脏需要大量能量供应而又不能发生中断。心脏的养料及氧的供应，几乎全靠冠脉循环，只有心内膜是靠房室腔内的血液供应。１ 冠脉循环的解剖特点［１，２］人的心脏通常有两条冠状动脉，它们都起自主动脉根部。右冠状动脉起?
The heart is an organ that is heavy and often active, so the heart needs a lot of energy without interruption. The feeding of the heart and the supply of oxygen rely almost exclusively on the coronary circulation, and only the endocardium is supplied by the blood in the atrioventricular cavity. Anatomical Features of the Coronary Circulation [1, 2] The human heart usually has two coronary arteries, all of which function as the root of the autonomic artery. Right coronary artery from?