Muscles of facial expression

Question 1

For the Corrugator superculli muscle state:
• Origin:
• Insertion:
• Action:

Answer 1

• Origin:
Supraorbital ridges

• Insertion:
Skin of eyebrow

• Action:
Frown

Question 2

For the procerus state:
• Origin:
• Insertion:
• Action:

Answer 2

• Origin:
Nasal bones

• Insertion:
Skin of eyebrow

• Action:
Frown

Question 3

For the Occipitofrontalis state:
• Origin:
• Insertion:
• Action:

Answer 3

• Origin:
Two bellies, occipital and frontal

• Insertion:
Epicranial aponeurosis

• Action:
Surprise (occipital/frontal) , Frown (frontal)

Question 4

For the palpebral and orbital part of the orbicularis muscle state:
• Origin:
• Insertion:

Actions:
• Palpebral:
• Orbital:

Answer 4

• Origin:
Orbital rim

• Insertion:
Eye lid

Actions:
• Palpebral:
gentle closing

• Orbital:
squinting

Question 5

For the nasalis state:
• Origin:
• Insertion:
• Actions:

Answer 5

• Origin:
Maxilla

• Insertion:
Nasal bone

• Actions:
Elevates nostrils

Question 6

For the orbicularis oris and buccinator state:
Orbicularis oris 
• Origin:
• Insertion:
• Actions:

Buccinator
• Origin:
• Insertion:
• Actions:

Answer 6

Orbicularis oris
• Origin:
Maxilla, mandible and angle of mouth

• Insertion:
Mucous membrane of mouth

• Actions:
Closes mouth, compresses and protrudes lips (kissing) and thinning (pursing)

Buccinator
• Origin:
Alveolar part of mandible and maxilla

• Insertion:
Angle of mouth and orbicularis oris

• Actions:
Blowing up a balloon, presses cheeks against molar teeth, assists mastication

Question 7

Which elevators originate from the maxilla?

Answer 7

• Levator labii superioris alaeque nasi
• Levator labii superiors
• Levator anguli oris

Question 8

Which elevators originate from the zygomatic bone?

Answer 8

• Zygomatic minor

* Zygomatic major

Question 9

Which elevators insert in the alar cartilage?

Answer 9

• Levator labii superioris alaeque nasi

Question 10

Which elevators insert in the skin of the upper lip?

Answer 10

• Zygomatic minor

* Levator labii superiors

Question 11

Which elevators insert in the angle of the mouth?

Answer 11

• Zygomatic major

* Levator anguli oris

Question 12

Which depressors originate from the mandible?

Answer 12

• Depressor anguli oris
• Mentalis
• Depressor labii inferioris (also originates from platysma)

Question 13

Which depressor inserts into the angle of the mouth?

Answer 13

• Risorius

* Depressor anguli oris

Question 14

Which depressor inserts into the skin of the lower lip?

Answer 14

• Depressor labii inferioris

Question 15

Which depressor inserts into the skin of the chin?

Answer 15

• Mentalis

Question 16

Which depressor inserts into the mandible, angle of mouth and skin of chin?

Answer 16

• Platysma