Week 5 - Facial muscles

Question 1

Which muscle does the following statement describe: ‘it inserts into the corner of the mouth…contraction pulls backwards on the corner of the mouth. At the same time, action of the muscle lifts the corner of the mouth upward and to the side’?

Answer 1

zygomatic major

Question 2

Contraction of the risorius muscles results in what movement of the lips?

Answer 2

drawing the corners backward

Question 3

Which two muscles play a major role in protruding the lips?

Answer 3

Mentalis and Orbicularis Oris

Question 4

The contraction of which muscle results in a sad expression?

Answer 4

Depressor anguli oris

Question 5

Which muscles are involved in creating the appropriate lip position for [i] production

Answer 5

• Buccinator
• Zygomatic Major
• Risorius

Question 6

Which muscle is involved in raising the eyebrows?

Answer 6

Occipitofrontalis

Question 7

Which muscle draws the corner of the mouth upward and may also raise the lower lip?

Answer 7

Levator Anguli Oris

Question 8

The contraction of which muscle pulls the lower lip downward and may also cause the lower lip to turn outward?

Answer 8

Depressor Labii Inferioris

Question 9

Which two muscles lift the upper lip?

Answer 9

• Zygomatic Major
• Levator Labii Superior

Question 10

Which facial muscle forms the front part of the cheek?

Answer 10

Buccinator