摘要
在26个（胎儿8．成人5，狗5，兔8）心脏标本上用连续切片光镜观察和测量了房室结和房室束的形态和位置成人房室结中份额状面上呈半椭圆形、扁平形或梭形，胎儿呈肾形。成人房室结大小为3．7mm×3．5mm×1．0mm。胎儿31．1mm×1．8mm×0．6mm，狗2．1mm×2．4mm×0．6mm，兔2．1mm×1．2mm×0．4mm。成人房室束大小为7．4mm×2．2mm×1．2mm。成人房室结向后距冠状窦口前缘3．0～4．0mm，离右心房内侧面0．2～0．6mm，位于三尖瓣隔侧瓣上缘1．7～5．5mm。本文讨论了这些结构的临床意义。
The morphology and position of atrioventricular node(AV node)and atrioventricularbundle(AV bundle) in 26 hearts (adults 5,fetuses 8,dogs 5,rabbits 8) were observed and measured underthe micr0sc0py by means of serial secti0ns. Adult AV node at the forntal section of middle part showed halfoval,flatt or fusiform in shape,the fetuses were kidney-like in shape. The size of AV n0de was 3. 7mm ×3. 5mm × 1. Omm in adult, it was 1. 1mm × 1. 8mm ×0. 6mm in fetuse,dog was 2. 1mm × 2. 4mm × 0.6mm, rabbit was 2. 1mm × 1. 2mm × 0. 4mm. The size of AV bundle in adult was 7. 4mm × 2. 2mm × 1.2mm. The adult AV node was 3. 0-4. 0mm posterior to the anterior border o cronory sinus orifice,0. 2-0. 6mm from the endocardium of right atrium, 1. 9-5. 5mm above the upper border of the septal leafletof the tricusipid valve. Their clinical significance was discussed.
出处
《江苏临床医学杂志》
1998年第1期1-4,共4页
Journal of Jiangsu Clinical Medicine
关键词
房室结
房室束
心脏
临床解剖
atrioventricular node
atrioventricular bundle
heart
