Ch.2 Anatomy & Physiology (Muscles Of The Mouth And Mastication)

Question 1

What are the muscles of the mouth?

Answer 1

TROLLZBM

•triangularis aka depressor anguli oris
•risorius
•orbicularis oris
•levator anguli oris
•levator labii superioris aka quadratus labii superioris
•zygomaticus
•Buccinator
•mentalis

Question 2

What is the Buccinator?

Answer 2

Thin flat cheek muscle between upper and lower jaw. (Blowing)

Question 3

What is the levator labii superioris?

Answer 3

Aka quadratus labii superioris lifts wings of nose & upper lip

Question 4

What is the levator anguli oris ?

Answer 4

Associated with smiling

Question 5

What is the risorius muscle?

Answer 5

Draws corner of mouth out & back Muscle,in grinning

Question 6

What is the zygomaticus muscle?

Answer 6

Major and minor from the zygomatic bone to angle of mouth that elevates lip as if laughing

Question 7

What is the mentalis muscle?

Answer 7

Elevates lower lip and wrinkles chin

Question 8

What is the orbicularis oris?

Answer 8

Flat band around lips that contracts, compress, puckers & wrinkles them.

Question 9

What is the triangularis muscle?

Answer 9

Aka depressor anguli oris ; extend alongside chin pulls down corners of mouth

Question 10

What are the muscles of mastication? What do they do?

Answer 10

•Masseter
•Temporalis
Aka chewing muscles. Open/close mouth , bring jaw front/back
Facial massage and electrical modality treatments are done on these muscles