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| 胸大肌 (呈扇形，位于胸前壁上部,起自锁骨内侧半、胸骨和第1〜6肋软骨的前面以及腹直肌前层，各部肌束向外侧聚集,以扁腱止于肱骨大结节嵴。作用为使肩关节内收、旋内和前屈。上肢固定时，可上提躯干，与背阔肌一起作引体向上运动,也可提肋助吸气。该肌受胸内侧神经和胸外侧神经 (C₅〜T₁)支配) | |||
| 胸大肌 | |||
| 胸大肌 | |||
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pectoralis major : 5 phrases in 2 subjects |
| Plastic surgery | 3 |
| Surgery | 2 |
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