Which of the Following Features are Common to the Muscles

Question

Which of the following features are common to the muscles of mastication?
A) They share an oculomotor nerve innervation.
B) They move the mandible at the temporomandibular joint.
C) They are primarily grouped among the muscles of facial expression.
D) They allow a person to smile.
E) They control swallowing.

Accepted Answer

The muscles of mastication are responsible for moving the mandible at the temporomandibular joint, which allows for chewing and speaking. They are not innervated by the oculomotor nerve and are not grouped among the muscles of facial expression. While some of these muscles may be involved in smiling, this is not their primary function. Swallowing is primarily controlled by muscles in the pharynx and esophagus.