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facial muscles




facial muscles
Muscles of the face
The muscles of the face are sometimes known collectively as the "muscles of expression". The actions of many of them are implied in their names; the actions of the others may be inferred from their position.

The skin is the chief insertion of the facial muscles. When they contract they therefore move the skin and subcutaneous tissues, giving outward evidence of the emotions.

Wounds of the face tend to gape, and require numerous stitches, for the fibers of the skin draw the margins of the wound apart.

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   • ANATOMY AND PHYSIOLOGY