Musculature of the Lower Lip

Question 1

Which facial muscle will attach to the incisive fossa of the mandible and to the skin of the chin?

Answer 1

mentalis

Question 2

What facial muscle will act to raise and protrude the lower lip?

Answer 2

mentalis

Question 3

What is the innervation of mentalis?

Answer 3

mandibular branches of the facial nerve

Question 4

What facial muscle will attach to the oblique line of the mandible and to the orbicularlis oris of the lower lip and to the contralateral depressor labii inferioris?

Answer 4

depressor labii inferioris

Question 5

Which facial muscle acts to draw the lower lip down?

Answer 5

depressor labii inferioris

Question 6

What is the innervation of the depressor labii inferioris?

Answer 6

mandibular branches of the facial nerve

Question 7

What facial muscle will attach to the oblique line of the mandible and to the muscles at the corner of the mouth?

Answer 7

depressor anguli oris

Question 8

Which facial muscle will act to draw the corner of the mouth down and out?

Answer 8

depressor anguli oris

Question 9

What is the innervation of the depressor anguli oris?

Answer 9

mandibular branches of the facial nerve

Question 10

Which facial muscles will be attached to the oblique line of the mandible?

Answer 10

• depressor labii inferioris

- depressor anguli oris