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本实验解剖了110例人心标本(成人70、儿童40)的Koch三角区,观察和测量了房室结的形态、大小、毗邻和标志。房间隔及冠状窦口上、下方均有肌束连于房室结。Todaro腱在儿童多全部为腱性;在成人,其后部为肌性。三角区的深面为左、右心房壁和室间隔顶所构成的锥形间隙,其内为进入房室结区的血管和神经。根据构成不同,可将三角区分为5个区,即前上角的纤维支架区和房室结区,其余部分自上向下分别为房间隔区、右房壁区和室间隔区。本文还讨论了这些形态结构的功能及外科意义。
In this study, we dissected the Koch Triangulation of 110 human heart specimens (adult 70, children 40) and observed and measured the shape, size, adjacent and sign of atrioventricular node. Atrial septum and coronary ostium, the lower part of the muscle bundle connected to the AV node. Todaro tendons are mostly tendonous in children and muscular in the back of adults. Triangular deep area for the left and right atrial wall and ventricular septum formed by the cone of the gap, which is to enter the atrioventricular node of the blood vessels and nerves. According to the composition of the triangle can be divided into five areas, namely the upper corner of the fibrous stent area and atrioventricular junction area, the rest from top to bottom were septal, right atrium and ventricular septal area. This article also discusses the functional and surgical implications of these morphological structures.