What is ZYGOMATICUS?

Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

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."

More On This Topic



Link to This Definition

Did you find this definition of ZYGOMATICUS helpful? You can share it by copying the code below and adding it to your blog or web page.