All the muscles of facial expression are innervated by the _____

All the muscles of facial expression are innervated by the Facial Nerve (CN VII).

• frontalis
• depressor anguli oris
• zygomaticus major
• levator labii superioris
• orbicularis oris
• buccinator
• orbicularis oculi
• levator palpebrae superioris
• procerus
• nasalis

part of the scalp muscle called the occipitofrontalis; elevates the eyebrows

depresses corner of mouth

extends from zygomatic bone to the angle of mouth; draws angle up as in laughing

from infraorbital margin to upper lip; raises the upper lip

sphincter of mouth; fibers encircle mouth; closes mouth

thin, flat muscle that aids in mastication by pressing the cheeks against the teeth during chewing

sphincter of the eye; fibers encircle the eye and eyelids; closes the eye and forces out tears

passes from the forehead over the bridge of the nose; draws the medial part of the eyebrow inferiorly

transverse part - compresses the anterior nasal aperture;

alar part - widens the anterior nasal aperture