棘下肌(infraspinatus muscle)

1月 12, 2016 0 Comments

棘下肌(infraspinatus muscle)

棘下肌(infraspinatus muscle)
動作	肩關節外轉(external rotation) 肩關節內收(adduction)
起點	肩胛骨棘下窩(infraspinator fossa)的內側
止點	肱骨大結節(greater tubercle)後側中間小面
動脈	肩胛下動脈(subscapular artery) 旋肩胛動脈(Circumflex scapular artery)
神經	肩胛上神經(suprascapular nerve；C5、C6)
拮抗肌	肩胛下肌(subscapularis muscle) 胸大肌(pectoralis major muscle) 闊背肌(latissimus dorsi muscle)
備註

棘下肌 - 肩關節外轉

參考資料：
小小整理網站
Infraspinatus Muscle Anatomy
Infraspinatus muscle