Articulation Terminology Flashcards
What is the function of the Orbicularis Oris
rounds lips the muscle around the mouth
What is the function of the Risorius
superficial retracts the corners of the lips (involved in smiling)
What is the function of the buccinator?
deep to risorius, retracts the corner of the mouth, involved in mastication (chewing)
What are the lip elevators?
levator labii superioris, zygomatic minor, zygomatic major, and levator anguli oris
What is the posterior boundary of the Oral Cavity?
anterior and posterior faucial pillar
What are the lip depresors?
depressor labii inferiors, depressor anguli oris, mentalis muscle, and platysma
What lip elevator elevates the upper lip?
levator labii superioris
zygomatic minor
Which elevator elevats and retracts the angle of the mouth–smiling?
zygomatic major
Which elevator draws mouth up and medially
levator anguli oris
Which depressor pull lip down and out?
depressor labii inferioris
Which depressor depresses corners of the mouth?
depressor anguli oris
Which depressor
wrinkles the chin and pulls lower lip out?
mentalis muscle
Which depressor depresses the mandible?
Platysma
Which tongue muscle elevates the tongue tip?
superior longitudinal
Which tongue muscle pulls the tongue tip down?
inferior longitudinal
Which tongue muscle contracts and narrows the tongue?
transverse muscle
Which muscle is vertical and when it contracts it flattens the tongue?
vertical muscles
What muscle elevates the back of the tongue and lowers the velum?
palatoglossus
