臂后区、前臂后区深层和手背的解剖

1、Unit 12Posterior arm、posterior forearm、dorsum of hand 臂后区、前臂后区深层和手背的解剖臂后区、前臂后区深层和手背的解剖 Lecturer：Ma jian min Department of Anatomy, Medical college of Nanchang university 一、一、Muscle 肌肉肌肉1 1.Posterior group muscle of arm(臂后群肌臂后群肌) Triceps brachii (肱三头肌) Function Function (作用)： extensor of elbow jointe

2、xtensor of elbow joint (伸肘关节)。 Supply of nerveSupply of nerve(神经支配)： The radial nerveThe radial nerve(桡神经)。Posterior group muscles of forearm(前臂后群肌前臂后群肌) ) They can be divided into They can be divided into twolayers:superficialtwolayers:superficial and and deep layerdeep layer( (分浅、深两层分浅、深两层) )： Sup

3、erficial layerSuperficial layer( (浅层5块), from from radial to ulnarradial to ulnar(自桡侧向尺侧依次为): Extensor carpi radialis longus ( (桡侧腕长伸肌桡侧腕长伸肌) ) Extensor carpi radialis brevis ( (桡侧腕短伸肌桡侧腕短伸肌) ) Extensor digitorum ( (指伸肌指伸肌) ) Extensor digiti minimi ( (小指伸肌小指伸肌) ) Extensor carpi ulnaris ( (尺侧腕伸肌尺侧腕伸肌

4、) ) Deep layerDeep layer( (深层深层5 5块块) )： Supinator(旋后肌旋后肌) ) Abductor pollicis longus (拇长展肌拇长展肌) ) Extensor pollicis brevis ( (拇短伸肌拇短伸肌) ) Extensor pollicis longus (拇长伸肌拇长伸肌) ) Extensor indicis (示指伸肌示指伸肌) ) Supply of nerve(神经支配)： The radial nerve(桡神经)“锤状指锤状指”，“弹响指弹响指”，“网球网球肘肘”二二、Vessels and nerve(神经

5、和血管神经和血管) )1.Radial nerve1.Radial nerve( (桡神经桡神经) ) Deep branch of radial nerve and posterior Deep branch of radial nerve and posterior interosseousinterosseous nerve nerve( (桡神经深支及骨间后神经桡神经深支及骨间后神经) ) 桡神经损伤的症状桡神经损伤的症状2.Deep brachial arteryDeep brachial artery( (肱深动脉肱深动脉) )3.Posterior interosseous3.P

6、osterior interosseous artery artery( (骨间骨间后动脉后动脉) )4.Radial artery4.Radial artery( (桡动脉桡动脉) ) Snuff box鼻烟窝 Boundary:Radial side:Radial side:桡侧界桡侧界 Abductor pollicis longustendon( (拇长展肌腱拇长展肌腱) ) and Extensor pollicis brevis tendon(拇短伸肌腱拇短伸肌腱) )；UlnarUlnar side: side:尺侧界尺侧界 Extensor pollicis longus tendon (拇长伸肌拇长伸肌) )；Basal side:Basal side:Ex