人体心脏房室结、房室环及主动脉后结的巨微解剖
发布时间：2018-09-01 16:37
【摘要】：目的解剖分离人体心脏房室结和房室环的结构,阐述它们的形态特征及相互关系。方法通过体视显微镜解剖12例人体心脏的房室结、主动脉后结及房室环,再进行组织学观察,并绘图演示它们的结构关系。结果在二尖瓣环和三尖瓣环靠近冠状窦前缘处分别暴露了左、右房室环(12/12),直径分别为(0.69±0.12)mm、(0.78±0.13)mm。此处的左、右房室环穿行在房室隔内的心房肌与心室肌之间的间隙中,向房室结方向延伸。主动脉后结在主动脉根后方的房间隔中被探查到(7/9),它的后上方的房间隔间隙中有肌纤维与其相连,它的前下方分出左、右房室环,并且此处的左环比右环粗。在中心纤维体后方的心内膜下的深部,主动脉后结与房室结之间有直接的心肌组织连接通路,这条通路有别于另两条通路(左、右房室环)。结论主动脉后结和房室环可通过体视显微镜解剖暴露,主动脉后结与房室结之间有3条通路。
[Abstract]:Objective to dissect the structure of atrioventricular node and atrioventricular ring in human heart, and explain their morphological characteristics and relationship. Methods the atrioventricular node, posterior aortic node and atrioventricular ring were dissected by stereoscopic microscope in 12 cases of human heart. Results left and right atrioventricular annulus (12 / 12) and diameter (0.69 卤0.12) mm, (0.78 卤0.13) mm. were exposed to mitral annulus and tricuspid annulus near the anterior edge of coronary sinus, respectively. Here the left and right atrioventricular rings run through the space between the atrial and ventricular muscles in the atrioventricular septum, extending towards the atrioventricular node. The posterior node of the aorta was detected in the atrial septum behind the root of the aorta (7 / 9). There were muscle fibers in the interatrial septal space above the aorta. The left and right atrioventricular rings were separated from the anterior and lower atrioventricular rings, and the left ring was thicker than the right one. In the deep part of the endocardium behind the central fibrous body, there is a direct myocardial tissue junction pathway between the posterior aortic node and the atrioventricular node, which is different from the other two pathways (left and right atrioventricular rings). Conclusion the posterior aortic node and atrioventricular ring can be exposed by stereoscopic microscope, and there are three pathways between the posterior aortic node and the atrioventricular node.
【作者单位】： 杭州医学院解剖学教研室;
【基金】：浙江省教育厅一般科研项目(Y201432443)
【分类号】：R322.1
，
本文编号：2217759
[Abstract]:Objective to dissect the structure of atrioventricular node and atrioventricular ring in human heart, and explain their morphological characteristics and relationship. Methods the atrioventricular node, posterior aortic node and atrioventricular ring were dissected by stereoscopic microscope in 12 cases of human heart. Results left and right atrioventricular annulus (12 / 12) and diameter (0.69 卤0.12) mm, (0.78 卤0.13) mm. were exposed to mitral annulus and tricuspid annulus near the anterior edge of coronary sinus, respectively. Here the left and right atrioventricular rings run through the space between the atrial and ventricular muscles in the atrioventricular septum, extending towards the atrioventricular node. The posterior node of the aorta was detected in the atrial septum behind the root of the aorta (7 / 9). There were muscle fibers in the interatrial septal space above the aorta. The left and right atrioventricular rings were separated from the anterior and lower atrioventricular rings, and the left ring was thicker than the right one. In the deep part of the endocardium behind the central fibrous body, there is a direct myocardial tissue junction pathway between the posterior aortic node and the atrioventricular node, which is different from the other two pathways (left and right atrioventricular rings). Conclusion the posterior aortic node and atrioventricular ring can be exposed by stereoscopic microscope, and there are three pathways between the posterior aortic node and the atrioventricular node.
【作者单位】： 杭州医学院解剖学教研室;
【基金】：浙江省教育厅一般科研项目(Y201432443)
【分类号】：R322.1
，
本文编号：2217759
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