zygomaticus minor muscle

(redirected from caput zygomaticum quadrati labii superioris)
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zy·go·mat·i·cus mi·nor mus·cle

(zī'gō-mat'i-kŭs mī'nŏr mŭs'ĕl)
Facial muscle of anterior cheek extending to upper lip; origin, zygomatic bone posterior to zygomaticomaxillary suture; insertion, orbicularis oris of upper lip; action, draws upper lip upward and outward; nerve supply, facial.
Synonym(s): caput zygomaticum quadrati labii superioris, lesser zygomatic muscle, musculus zygomaticus minor.