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胸大肌

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胸大肌
胸大肌
The trunk viewed from the front, showing the pectoralis major to the right (To the left it is removed showing underlying structures, among other the pectoralis minor.)
基本信息
起点英语Anatomical terms of muscle#Insertion_and_origin锁骨前端:前方的表面内侧的锁骨
胸骨前端:前方表面的胸骨,六根上部软肋骨
终点英语Anatomical terms of muscle#Insertion_and_origin肱骨上的隆间沟(又称结节间沟
动脉胸肩峰主干的胸肌支
神经胸外侧神经和胸内侧神经
锁骨头:颈神经5和颈神经6
腹内脊头:颈神经7,颈神经8和胸神经(T1)
相关动作英语Kinesiology锁骨头:曲屈肱骨
腹内脊头:延长肱骨
整体来看,内收和内部旋转肱骨。也可以抽缩肩胛骨使之向前和后
拮抗肌英语Antagonist (muscle)Deltoid
标识字符
拉丁文Musculus pectoralis major
TA98A04.4.01.002
TA22301
FMAFMA:9627
格雷氏p.436
肌肉解剖学术语英语Anatomical terms of muscle

胸大肌为将手臂拉向胸部肌肉,两块胸大肌位于胸的两侧。胸大肌通常称为胸肌胸脯,成扇型,且分裂为大小不等两部分。在其窄端,两部分都附着于肱骨之上,在宽的一端,较小的部分附于锁骨上;较大的部分则附于胸骨和肋骨上面的软肋骨上,胸肌可将手部向前拉和向内拉近身体,还可使手臂转动。

负重训练

胸肌发达的男性

性别

男性的胸大肌在乳房内部,由乳房悬韧带支撑。女性的胸大肌则在乳腺叶后面。

资料来源

〈人体学习百科〉 猫头鹰出版社 ISBN 957-9684-11-1

外部链接

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胸大肌
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