棘下肌(infraspinatus muscle)
棘下肌(infraspinatus muscle)
肌肉 | 起点 | 止点 | 动作 | 动脉 | 神经 | 拮抗肌 | 备注 |
infraspinatus muscle(棘下肌) | infraspinator fossa(肩胛骨棘下窝)的内侧2/3 | greater tubercle(肱骨大结节)后侧中间小面 | 止点在肱骨大结节后方，收缩时可以使肱骨lateral rotation(外旋)、adduction(内收) | subscapular artery(肩胛下动脉) Circumflex scapular artery(旋肩胛动脉) | 肩胛上神经(suprascapular nerve；C5、C6) | subscapularis muscle(肩胛下肌) pectoralis major muscle(胸大肌) latissimus dorsi muscle(阔背肌) |
资料来源：webmd
