Conference 28 anterior neck

Question 1

What are symptoms of bells palsy?

Answer 1

1. flattened face with loss of forehead and nasolabial wrinkles
2. sagging eyebrow, eyelid and corner of mouth
3. tearing from eye
4. drooling

Question 2

Why would a patient with bells palsy have lack of forehead wrinkles?

Answer 2

because the facial nerve is damaged, which innervates the forehead muscles that make it wrinkle

Question 3

what muscle is paralyzed if a patient complains of food getting stuck between his gum and cheek?

Answer 3

Buccinator

Question 4

What muscle is paralyzed if a patient’s corner of their eye is drooping?

Answer 4

orbicularis oculi

Question 5

What muscle is paralyzed if a patient;s corner of their lip is drooping?

Answer 5

orbicularis oris

Question 6

What are the muscles of facial expression

Answer 6

1. orbicularis oculi
2. orbicularis oris
3. platysmus
4. buccinator

Question 7

What are the muscles of facial expression innervated by?

Answer 7

facial nerve (CN 7)

Question 8

When you ask a patient to wrinkle their forehead what branch of the facial nerve are you testing?

Answer 8

temporal

Question 9

When you ask a patient to pucker their lips what branch of the facial nerve are you testing?

Answer 9

buccal

Question 10

When you ask a patient to flare their neck what branch of the facial nerve are you testing?

Answer 10

cervical

Question 11

When you ask a patient to forcibly shut their eyes what branch of the facial nerve are you testing?

Answer 11

zygomatic

Question 12

When you ask a patient to show their bottom teeth what branch of the facial nerve are you testing?

Answer 12

marginal mandibular

Question 13

What other muscles does the facial nerve innervate other than the muscles of facial expression?

Answer 13

stapedius
stylohyoid
posterior belly of digastric

Question 14

what sensory deficit would be present if the ophthalmic division of the trigeminal nerve was injured?

Answer 14

loss of sensation over forehead, anterior scalp, nose and cornea

(specifically this area is innervated by supraorbital and supratrochlear nerve of V1)

Question 15

what are the sensory limbs of the corneal blink reflex

Answer 15

sensory: ophthalmic division of trigeminal nerve
motor: facial nerve

Question 16

what sensory deficits would your patient present with if the maxillary division of the trigeminal nerve was injured?

Answer 16

loss of sensation over the inverted comma that goes over the nose and cheeks

(specifically this area is innervated by infraorbital nerve off of V2)

Question 17

what sensory deficits would your patient present with if the mandibular division of the trigeminal nerve was lesioned?

Answer 17

loss of sensation over chin strap region extending to external ear

(auriculotemporal n.- sensory to skin around ear
buccal n.- sensory to skin of cheek
mental n.- sensory to skin of chin)

Question 18

What two arterial branches off of the external carotid artery supply the face?

Answer 18

facial artery and superficial temporal artery

Question 19

What artery does the superior and inferior labial arteries come off of?

Answer 19

facial artery

Question 20

What structure does the parotid duct cross anteriorly to?

Answer 20

masseter muscle

Question 21

What structure does the parotid duct pierce?

Answer 21

buccinator muscle