See Also: orbicularis oculi muscle(medicine)
palpebral part of orbicularis oculi muscle(medicine)
orbital part of orbicularis oculi muscle(medicine)
lacrimal part of orbicularis oculi muscle(medicine)
musculus orbicularis oculi(medicine)
orbicularis oculi reflex(medicine)
pars orbitalis musculi orbicularis oculi(medicine)
pars lacrimalis musculi orbicularis oculi(medicine)
pars palpebralis musculi orbicularis oculi(medicine)
orbicularis muscle(medicine)

orbicularis oculi muscle (medicine)


orbicularis oculi muscle
<anatomy> Consists of three portions: orbital part, or external portion, which arises from frontal process of maxilla and nasal process of frontal bone, encircles aperture of orbit, and is inserted near origin; palpebral part, or internal portion, which arises from medial palpebral ligament, passes through each eyelid, and is inserted into lateral palpebral raphe; lacrimal part (tensor tarsi muscle, Duverney's or Horner's muscle) arises from posterior lacrimal crest and passes across lacrimal sac to join palpebral portion; action, closes eye, wrinkles forehead vertically; nerve supply, facial.

Synonym: musculus orbicularis oculi, musculus orbicularis palpebrarum, orbicular muscle of eye, sphincter oculi.