人心房间隔的动脉及其吻合

使用90例人心脏标本,研究人心房间隔的动脉来源及分布特点。房间隔的动脉有窦房结动脉的分支(100%)、房室结动脉(100%)、kugel动脉(93.33%)、左房后支(76.67%)等。房间隔的动脉沿房间隔边缘成环状吻合,然后各分支向卵圆窝中心会聚。房间隔的动脉吻合丰富,30.67%的标本出现吻合。因此成为冠状动脉之间建立侧支循环的重要途径之一,具有重要的临床意义。

ARTERIAL BRANCHES AND THEIR ANASTOMOSIS OF INTERATRIAL SEPTUM OF HUMAN HEART

The origin, course, and distribution of the arterial branches of the interatrial septum were studied using 90 human heart specimens (60 ABS casts and 30 transparent specimens). 1. There is the branch of the S-A node artery (90 cases, 100%), the A-V node artery (90 cases, 100%), the v-A node artery (90 cases, 100%), Kugel's artery (84 cases, 93.3%), the posterior branch of the left atrium (5 cases, 5.6%), the terminal ramus of the left circumflex branch (4 cases, 4.4%), etc. 2. The anastomosis of the interatrial septa of 75 heart specimens were observed. The anastomosis of interatrial septa occurs in 23 cases (30.7%). The common anastomosis site is the circumferential bound of the interatrial septum and the inferior part of the fossa ovalis. 3. The interatrial septum presents more sections of the coronary anastomosis that become the important way of forming the collateral circulation among the coronary arteries. This anastomosis is of great importance in clinical practice.