TMJ: Muscles for Facial Expression

Question 1

Occipitofrontalis

Answer 1

raises eyebrows

Question 2

Corrugator supercilli

Answer 2

pulls eyebrows down and medially

Question 3

Procerus

Answer 3

pulls eyebrows medially

Question 4

Orbicularis oculi

Answer 4

orbital part: “scrunch up” the eyelid

palpebral part: close eyelid

Question 5

Orbicularis oris

Answer 5

closes lip

Question 6

Buccinator

Answer 6

cheek compression

Question 7

Levator anguli oris

Answer 7

sneering: pulls angle of mouth laterally
smiling: bilateral movement

Question 8

Levator labii superior alaeque nasi

Answer 8

elevates/protracts the upper lip

dilates the nostrils

Question 9

Levator labii superioris

Answer 9

elevates the upper lip

protracts the upper lip

Question 10

Zygomaticus major

Answer 10

draws the angles of the mouth upward and laterally as in laughing

Question 11

Mentalis

Answer 11

protrudes the lower lip as in pouting or sulking

Question 12

Depressor anguli oris

Answer 12

pulls mouth down and laterally

Question 13

Depressor labii inferioris

Answer 13

curls lip downwards and laterally

Question 14

Platysma

Answer 14

depresses lower lip and angle of mouth

expression of horror