Muscles of the head

Question 1

Action of Buccinator

Answer 1

Compresses cheeks

Question 2

Action of depressor labii inferiloris

Answer 2

Depress lower lip

Question 3

Action of levator labii superiloris

Answer 3

Elevate upper lip

Question 4

Action of mentalis

Answer 4

Elevate and protrudes lower lip

Question 5

Action of orbicularis oris

Answer 5

Compress and purse lips

Question 6

Action of Risorius

Answer 6

Draws the corner of the mouth to the side

Question 7

Action of depressor anguli oris

Answer 7

Depress corner of the mouth

Question 8

Action of zygomaticus major

Answer 8

Retract and elevate corner of the mouth

Question 9

Action of zygomaticus minor

Answer 9

React and elevates upper lip

Question 10

Action of corrugator supercilli

Answer 10

Pull skin inferiorly and anterior, wrinkles the brow

Question 11

Action of levator palpebrae

Answer 11

Elevates upper eyelid

Question 12

Action of orbiculairs oculi

Answer 12

Close eye

Question 13

Action of the frontal belly of occipitofrontalis

Answer 13

Raise eyebrows

Question 14

Action of the occipital belly of the occipitofrontalis

Answer 14

Tense and retract scalp

Question 15

Action of the platysma

Answer 15

Tense the skin of the neck, depresses mandible.

Question 16

Action of masseter

Answer 16

Elevate mandible and closes the jaw

Question 17

Action of temporalis

Answer 17

Elevates mandible

Question 18

Action of pterygoids (medial and lateral)

Answer 18

Medial: Elevates the mandible and closes the how, performed lateral excursion

Lateral: Opens jaw, protrudes mandible, or performs lateral excursion.