胸大肌为将手臂拉向胸部的肌肉,两块胸大肌位于胸的两侧。胸大肌通常称为胸肌或胸脯,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。
此条目需要补充更多来源。 (2018年11月17日) |
负重训练
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
- Illustration: upper-body/pectoralis-major from The Department of Radiology at the University of Washington
- 393294 于 GPnotebook
- UCC
- Poland Syndrome, Poland Anomaly, Poland Sequence
- MRI Imaging sequence demonstrating a pectoralis major muscle tear
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.