Examlex
In a contracted muscle, the Z lines of a sarcomere are ____.
Levator Labii Superioris
A facial muscle responsible for elevating the upper lip, contributing to expressions of disdain or disgust.
Frown
A facial expression characterized by a furrowing of one's eyebrows, often indicating displeasure or concentration.
Extrinsic Muscles
Muscles that originate outside of the body part they act upon, often providing gross motor function.
Lateral Rectus
A muscle located in the eye that functions to rotate the eyeball away from the body's central line.
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