Superficial Face - Stephens 3/30

Question 1

Scalp lacerations of what layer result in profuse bleeding?

Answer 1

Deep, close, subcutaneous tissue layer

Question 2

Which layer of the scalp do avulsion injuries tend to separate in?

Answer 2

Loose subaponeurotic layer

Question 3

What is special about the periosteum of the cranium?

Answer 3

Very poor osteopenic (regenerative) properties

Insensitive to pain

Question 4

Depressed skull fractures involve what layer of the scalp?
What may tear?

What may develop and what may be contained in the development?

Answer 4

Loose subaponeurotic layer
Dural venous sinus

Scalp hematoma
CSF leakage

Question 5

What is a major blood supply to the scalp?

Answer 5

Superficial temporal artery

Question 6

What supplies innervation to the medial part of the skin of the forehead?

Lateral part?

Answer 6

Supratrochlear n.

Supraorbital n. (Both from V1)

Question 7

What supplies innervation to the skin of the anterior temporal region?

Answer 7

Zygomaticotemproal nerve

Question 8

What supplies innervation to the skin in the temporal region?

Answer 8

Auriculotemporal n. (From V3)

Question 9

How can infections of scalp spread?

What layer?

Answer 9

Emissary veins to the dural venous sinuses

Loose subaponeurotic layer

Question 10

What is embedded in the parenchyma surrounding the parotid gland?

Answer 10

Facial nerve
Retromandibular vein
External carotid artery

Question 11

The cell bodies of pre-ganglionic PS fibers to the parotid gland are located where?

Axons course with what?

Passes through what?

Joins what nerve and synapses in what ganglion?

Answer 11

Inferior salivatory nucleus

CN 9

Tympanic plexus

Lesser petrosal and Otic ganglion

Question 12

Postganglionic sympathetic fibers to the parotid gland are from where?

Answer 12

Superior cervical ganglion

Question 13

Postganglionic PS fibers reach the parotid gland via what nerve?

Answer 13

Auriculotemporal nerve

Question 14

Raising the eyebrows is done by what muscle?

Innervation?

Clinical sign?

Answer 14

Frontalis

Temporal

Inability to elevate the eyebrows

Question 15

Blinking/winking the eyelids is done by what muscle?

Innervation?

Clinical sign?

Answer 15

Orbicularis Oculi

Temporal
Zygomatic

Drooping of the lower lid
Spilling of tears
Corneal drying

Question 16

Smiling is done by what muscle?

Innervation?

Clinical sign?

Answer 16

Zygomatic major

Zygomatic

Inability to elevate and retract the angle of the mouth

Question 17

Puckering the lips is done by what muscle?

Innervation?

Clinical sign?

Answer 17

Orbicularis oris

Buccal

Drooling of saliva from the corner of the mouth

Question 18

Flaring of the neck is done by what muscle?

Innervation?

Clinical sign?

Answer 18

Platysma

Cervical

Flaring of ant. Neck

Question 19

What is the etiology of Bell’s palsy?

Answer 19

Idiopathic
Surgical
Traumatic
Parotid gland tumor

Question 20

What are the signs and symptoms of Bell’s Palsy?

Answer 20

Ectropion
Piphora
Drying of cornea
Inability to wink
Unequal smile
Drooling from corner of mouth
Hyperacusis

Question 21

What are 4 branches of the facial artery?

Answer 21

Inferior labial
Superior labial
Lateral nasal
Angular

Question 22

What arteries are distal branches of the internal carotid a?

They are terminal branches of what?

Answer 22

Supraorbital and supratrochlear

Ophthalmic a.

Question 23

What forms the retromandibular vein?

Answer 23

Maxillary vein

Superficial temporal vein

Question 24

What pierces the buccinator muscle?

What does this muscle allow you to do?

What is attached posteriorly to?

Answer 24

Parotid duct

Suck on a straw

Pterygomandibular Raphe

Question 25

What kind of epithelium is skin of the scalp?

Answer 25

Stratified squamous keratinized