解剖一具青年尸体,发现其左侧桡动脉存在变异:桡动脉起自肘关节上方的肱动脉前壁,斜过肘关节前方,在前臂桡侧伴桡神经浅支走行,经桡骨茎突前方并在其远侧发出掌浅支与尺动脉末端形成掌浅弓,主干转向掌背,再穿第一、二掌骨间隙走向手掌侧面而延续为拇主要动脉。在桡骨颈高度肱动脉分为桡、尺动脉处,尺动脉成为肱动脉主干的直接延续,肱动脉还 A young corpse was dissected and found to have variability on the left radial artery: the radial artery arose from the anterior wall of the brachial artery above the elbow joint, anterior obliquely over the elbow joint, the superficial branch of the radial nerve at the radial side of the forearm and the anterior radial styloid process And in its distal palm and superficial branch of the ulnar artery palms to form a bow, trunk back to the palm, and then wear the first and second metacarpal to the palm side of the gap toward the main artery of the thumb. In the radial neck height of the brachial artery is divided into radial, ulnar artery, ulnar artery to become the main continuation of the brachial artery, brachial artery also