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本文用透明和解剖剥离等方法观察了207例大鼠的冠状动脉。大鼠左冠状动脉主干和前降支始段与伴行静脉的关系极为密切。复制心肌梗塞模型时,结扎左冠状动脉可在动脉圆锥与左心耳之间进行。左室支粗大,是前降支(或旋支)的主要分支,分布到左室前、后壁的大部分。大鼠有独立的室间隔动脉(53.6％起于右冠状动脉,46.4％起于左冠状动脉)供应室间隔的大部分。25.1％的大鼠有上间隔动脉(起于右冠状动脉)供应室间隔的上部。后降支的出现率为13.5％。冠状动脉的分布类型以均衡型居多(72.0％),右优势型次之(25.1％),左优势型最少(2.9％)。以上结果与兔、狗、猴等动物及人的资料作了比较讨论。
In this paper, transparent and anatomical dissection and other methods were observed in 207 cases of coronary arteries. The relationship between the left main coronary artery and the descending branch of anterior descending artery in rats is closely related to the accompanying vein. When replicating a myocardial infarction model, ligation of the left coronary artery may take place between the arterial cone and the left atrial appendage. Left ventricular branch is large, is the anterior descending branch (or spinous branch) of the main branch, distributed to the left ventricular anterior, posterior wall most. The rats had separate septal artery (53.6% from the right coronary artery, 46.4% from the left coronary artery) supplying most of the ventricular septum. 25.1% of the rats had suprasellar septum (starting from the right coronary artery) supplying the upper part of the ventricular septum. The incidence of posterior descending artery was 13.5%. Coronary artery distribution type to balance the majority (72.0%), the right dominant type (25.1%), the least dominant type (2.9%). The above results and rabbits, dogs, monkeys and other animal and human data were discussed.