A Measurement of Snuff-Box Segment of Radial Artery
Yang Shengbo Li Mingyang Zhang Hong Department of Anatomy, Zunyi Medical College, Zunyi 563003
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.