External intercostal muscles
（重定向自Intercostales externi）
![](/Images/godic/202501/20/External_intercostal_muscles_back0105.png")
![A cutout of the thoracic wall showing the three layers of intercostal muscle - from the left wall.](/Images/godic/202501/20/1114_Thorax_zoom0105.png")
![](/Images/godic/202501/20/External_intercostal_muscles_animation0106.gif")
![](/Images/godic/202501/20/Gray8190106.png")
The external intercostal muscles, or external intercostals (Intercostales externi) are eleven in number on either side.
Intercostales externi
英语百科
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