Lower Face Muscles:Transverse or Angular
transverse muscles that moves the cheeks while chewing to position the food bolus and one is for smiling
Buccinator and Rhisorius
raises upper lip and flares nostrils
levator labii superioris(nostril)
elevates/retracts tongue tip
superior longitudinal
ANTERIOR fibers pull the tongue body down, POSTERIOR fibers pull the tongue body and hyoid forward
genioglossus
elevates soft palate vertically and posteriorly
levator veli palatini
angular muscle that draws corner of lips up and laterally aka smiling
zygomatic major
wrinkles chin, protrudes lower lip
mentalis
curls tongue tip down, if contracted with superior pulls tongue down
inferior longitudinal
pulls the sides of the tongue down opposing palatoglossus
hyoglossus (opposes palatoglossus)
contraction shortens the soft palate
musculus uvulae
elevates upper lip
draws lip down and in(pout or frown)
depressor labii oris inferioris
narrow tongue
transverse
pulls tongue body up and back
styloglossus
contraction opens the eustachian tube which equalizes pressure in the middle ear
tensor veli palatini
depresses angle of lip aka frown
depressor anguli oris
elevates middle of upper lip
levator labii alaequae nasi superiosis
pulls tongue down into floor of mouth(flattens)
vertical
can lower the soft palate or raise the tongue up and back
palatoglossus
elevates lip
levator anguli oris
cranial nerve that innervates lower face muscles
CN VII(7th facial)
cranial nerve that innervates intrinsic and extrinsic muscles
CN XII Hypoglossal(hippo)
cranial nerve that innervates the VELAR muscles
CN X (10th vagus) and accessory 11
can lower the palate, narrow the pharynx or elevate the larynx
palatopharyngeus