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Caput zygomaticum quadrati labii superioris

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Caput zygomaticum quadrati labii superioris --> zygomaticus minor

(Science: anatomy, muscle) origin, zygomatic bone posterior to zygomaticomaxillary suture; insertion, orbicularis oris of upper lip; action, draws upper lip upward and outward; nerve supply, facial.

Synonym: musculus zygomaticus minor, caput zygomaticum quadrati labii superioris, lesser zygomatic muscle.