棘上肌(supraspinatus muscle)

棘上肌(supraspinatus muscle)
棘上肌(supraspinatus muscle)
動作肩關節外展(abduction)
肩關節外轉(external rotation)
負責起始最初15度的外展
起點肩胛骨棘上窩(supraspinator fossa)的內側2/3
止點肱骨大結節(greater tubercle)上方
動脈肩胛下動脈(subscapular artery)
神經肩胛上神經(suprascapular nerve)
(C5、C6)
拮抗肌棘下肌(infraspinatus muscle)
小圓肌(teres minor muscle)
胸大肌(pectoralis major muscle)
闊背肌(latissimus dorsi muscle)
備註穩定肩關節

棘上肌 - 肩關節外展

棘上肌 - 肩關節外轉

參考資料:
小小整理網站
Supraspinatus muscle
Ess 3092 week 4 student (shoulder)

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