OBSERVATION ON MORPHOLOGICAL TYPES OF THE ARTERIOVENOUS ANASTOMOSES AND THE BEHAVIOUR OF CUTANEOUS ARTERIOVENOUS ANASTOMOSES AFTER THERMAL STIMULATION OF THE INTRAVERTEBRAL CANAL
- VernacularTitle:兔耳皮肤动静脉吻合的形态分类及其在椎管加温后的变化
- Author:
Guiying YU
;
Gs MOLYNEUX
;
Liping ZHANG
- Publication Type:Journal Article
- Keywords:
Arteriovenous anastomoses;
Ear chamber;
Intravertebral canal warming;
Rabbit
- From:
Acta Anatomica Sinica
1954;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Using inverted microscopy and circuit TV, the morphological type, diameter of arteriovenous anastomoses (AVAs) in 11 rabbit's ear chambers were observed. According the joining forms with arterioles and venules in 68 AVAs, there were 4 types: type Ⅰ 58.8％, type Ⅱ 19.4％, type Ⅲ 11.1％, type ⅣV 10.7％. The inner diameters of the AVAs when dialated, measured 36.6?1.67?m at their arterial ends, 16+0.6?m at their narrow points, 66?4?m at their venous ends.This study showed that dilation of AVAs in the rabbit's ear is a graded response which correlates with the rise in intravertebral canal temperature. Some AVAs have multiple venous segments which vary in diameters. It was observed that the behaviour were different after intravertebral canal warming.
