Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side.

Annotation

/growth: coord with MUSCLE DEVELOPMENT; /embryol: coord with MUSCLE DEVELOPMENT if pertinent

DUI

D011626 MeSH Browser

CUI

M0018080

Previous indexing

Masticatory Muscles (1966-1979); Muscles (1966-1979); Facial Muscles (1966-1979)

History note

91(80); was see under MASTICATORY MUSCLES 1980-90

Public note

91; was see under MASTICATORY MUSCLES 1980-90