Identify the name of the muscles that are used in blinking and squinting.
Facial muscles are unique to other muscles because of their location relative to the surface of the skin. They are very superficial so that they can create facial expressions easily.
Answer and Explanation:
The muscle responsible for blinking and squinting would be Orbicularis Oculi. This circular muscle surrounds the orbital cavity to cause actions such as closing the eyelids and squinting them. Orbicularis oculi is a very superficial muscle which is why it is capable of manipulating the surface of the skin.
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Learn more about this topic:
from Biology 105: Anatomy & PhysiologyChapter 6 / Lesson 3