ZYGOMATICUS

the group of muscles, innervated by the facial nerve, which initiates the motion of the upper lip upward, backward, and outward. Its activity is documented in analyses of feeling.

ZYGOMATICUS: "Tomorrow, we will be covering the section in your textbook supplement on zygomaticus."
Cite this page: Nugent, Pam M.S., "ZYGOMATICUS," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/zygomaticus/ (accessed October 22, 2017).
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