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DictionarySeemuscleorbicularis oris muscle
or·bi·cu·la·ris o·ris mus·cle (ōr-bik'yū-lā'ris ō'ris mŭs'ĕl) Origin, by nasolabial band from septum of the nose, by superior incisive bundle from incisor fossa of maxilla, by inferior incisive bundle from lower jaw each side of symphysis; insertion, fibers surround mouth between skin and mucous membrane of lips and cheeks, and are blended with other muscles; action, closes lips; nerve supply, facial.
Synonym(s): musculus orbicularis oris [TA] . orbicularis oris muscleFacial muscle. Origin: adjacent facial muscles that surround mouth. Insertion: into itself and skin of lips while encircling mouth. Nerve: facial (CN VII). Action: closes and purses lips. See: face and headfor illus.See also: muscleor·bi·cu·la·ris o·ris mus·cle (ōr-bik'yū-lā'ris ō'ris mŭs'ĕl) Origin, by nasolabial band from septum of the nose, by superior incisive bundle from incisor fossa of maxilla, by inferior incisive bundle from lower jaw each side of symphysis; insertion, fibers surround mouth between skin and mucous membrane of lips and cheeks, and are blended with other muscles; action, closes lips; nerve supply, facial.
Synonym(s): musculus orbicularis oris [TA] . |