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More Muscles
Muscles
Muscle | Origin | Insertion | Action |
---|---|---|---|
Buccinator | maxilla & mandible | obicularis oris | draws corner of mouth laterally; compresses cheek (whistling), holds food between teeth during chewing |
corrugator supercilii | arch of frontal bone above nasal bone | skin of eyebrow | draws eyebrows medially and inferiorly; wrinkles skin of forehead vertically |
depressor anguli | body of mandible below incisors | skin and muscle at angle of mouth below insertion of zygomaticus | zygomaticus antagonist; draws corners of mouth downward and laterally |
zygomaticus | (blank) | (blank) | smiling muscle |