ARTERIAL BRANCHES AND THEIR ANASTOMOSIS OF INTERATRIAL SEPTUM OF HUMAN HEART / 西安交通大学学报(医学版)

ABSTRACT

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.