【摘要】 解剖并测量了 4 4侧成人手标本 ,桡动脉鼻咽窝段长度为 2 .60± 0 .13cm,其近侧端和远侧端外径分别为 2 .65± 0 .17mm和 2 .2 0± 0 .2 1mm。测定了该段动脉的恒定皮支腕背支和拇指背动脉的发出高度。确定了该段动脉的体表投影位置在桡骨背结节与第一掌骨头连线中点 (该段拇长伸肌腱的中点 )和桡骨茎突下端与第一掌骨底连线的中点 (该段拇短伸肌腱的中点 )的连线上。该段拇长伸肌腱长 8.4 0± 0 .2 0 cm,拇短伸肌腱长 2 .2 0± 0 .12 cm。更多还原

【Abstract】 The authors had made a dissection and measurement on 44 hands of adult cadavier. The length of snuffbox segment of radial artery was 2.60±0.13cm, in which the outer diameter of proximal and distal ends was 2.65±0.17mm and 2.2±0.21mm respectively. A measurment was also made on the level of origin of the dorsal carpal branch and dorsal thumb branch of this segment radial artery. The surface projection of this segment radial artery was a line drawing from the middle point between the dorsal tubercle of radius and the head of the first metacarpal bone to the middle point between the lower end of the styloid process of radius and the base of the first metacarpal bone. The length of this part of the tendon of extensor pollicis longus was 8.40±0.20cm. The length of the tendor of pollicis brevis was 2.20±0.12cm.更多还原