Face and Scalp Muscles/Vessels

Question 1

All muscles of face are innervated by which nerve

Answer 1

Facial Nerve (CN VII)

Question 2

Occipitofrontalis

Answer 2

Arises from the Occipital Bone and extends to the skin of forehead
Contracts the forehead to raise eyebrows

Question 3

Nasalis

Answer 3

Found on the nose

Depresses nose/flares nostrils

Question 4

2 Parts of the Orbicularis Oculi

Answer 4

Palpebral –> closes eyelid

Orbital –> compresses eyelids (squinting)

Question 5

Levator Palpebral

Answer 5

Elevation of eyelid

Only facial muscle not innervated by Facial Nerve (CN III)

Question 6

Ptosis

Answer 6

Paralysis of Levator Palpebral

Unable to open the eyelids

Question 7

Zygomaticus Major/Minor

Answer 7

Attach to the lip

Responsible for opening mouth/elevating lip (smile)

Question 8

Risorius

Answer 8

Origin is paratoid. Insertion is angle of mouth

Responsible for dilating mouth laterally

Question 9

Depressor Labii Inferior

Answer 9

Responsible for retracting lower lip

Question 10

Mentalis

Answer 10

Responsible for protruding lower lip

Question 11

Platysma

Answer 11

Responsible for depressing mandible

Question 12

Buccinator

Answer 12

Cheek muscle

Responsible for control of bolus

Question 13

Branches of Facial Nerve

Answer 13

Temporal
Zygomatic
Buccal
Mandibular
Cervical

Question 14

Bell’s Palsy

Answer 14

Injury to Facial Nerve

Causes sagging/paralysis of affected side and difficulty chewing food

Question 15

Branches of Trigeminal Nerve

Answer 15

Opthalmic (V1)
Maxillary (V2)
Mandibular (V3)

Question 16

Branches of External Carotid Artery

Answer 16

Superficial Temporal

Facial Artery –> inferior + superior labial artery

Question 17

Veins of Face

Answer 17

Have the same names as arteries

There is a communicating branch that allows for drainage into both Internal and External Jugular

Question 18

Danger Zone of Face

Answer 18

Around the nose due to the venous drainage

Bacterial infections can spread to brain

Question 19

5 Layers of Scalp

Answer 19

Skin
Connective Tissue
Aponeurosis
Loose Connective Tissue
Periostium

Question 20

Scalping

Answer 20

Occurs when hair gets caught in machinery

Hair, skin, connective tissue, and aponeurosis are pulled away. Loose Tissue falls off and bone is exposed

Question 21

Arteries of Scalp

Answer 21

All of ECA
Occipital
Superior Temporal
Posterior Auricular