Cranial Nerve V

Question 1

the sensory nerve of the face

Answer 1

CN V

Question 2

CN V has motor fibers to these muscles

Answer 2

muscles of mastication

Question 3

3 divisions of CN V

Answer 3

ophthalmic, maxillary, mandibular

Question 4

the 3 divisions have their nuclei in this ganglion

Answer 4

gasserian or semilunar

Question 5

CN V spares this area of the face

Answer 5

the area over the angle of the jaw

Question 6

the angle of the jaw is innervated by this nerve

Answer 6

great auricular nerve

Question 7

CN V supplies these muscles of masication

Answer 7

temporalis, masseter, medial pterygoid

Question 8

CN V also innervates these muscles which open the jaw or causes lateral movement of jaw

Answer 8

lateral pterygoids

Question 9

primary action of the right lateral pterygoid

Answer 9

move jaw tip to the left

Question 10

primary action of the left lateral pterygoid

Answer 10

move the jaw tip to the right

Question 11

with CN V, bilateral corticobulbar lesions cause

Answer 11

permanent paralysis of volitional jaw movement

Question 12

peripheral nerve disease affecting CN V is usually responsible for

Answer 12

sensory impairment

Question 13

sensory impairment of CN V usually causes atrophy of

Answer 13

temporalis and masseter muscles

Question 14

when the ophthalmic division of CN V is involved it causes

Answer 14

neuroparalytic keratitis (corneal inflammation and ulceration)

Question 15

idiopathic syndrome that has sharp or painful facial sensation in a clear distribution of one of the divisions of CN V

Answer 15

trigeminal neuralgia

Question 16

trigeminal ganglion located here

Answer 16

Meckel’s cave

Question 17

V1 exits the skull here

Answer 17

superior orbital fissue

Question 18

other nerves that also exit through superior orbital fissue

Answer 18

3, 4, 6

Question 19

V2 exits the skull here

Answer 19

foramen rotundum

Question 20

V3 exits the skull here

Answer 20

superior rotundum ovale

Question 21

trigeminal sensory issues cause (neuropathy, neuralgias)

Answer 21

neuralgias

Question 22

trigeminal motor issues cause (neuralgias, neuropathy)

Answer 22

neuropathy

Question 23

when there is unilateral paralysis of masticatory muscles the mandible upon opening deviates to this side

Answer 23

toward the paralyzed side

Question 24

when there is bilateral paralysis of masticatory muscles the mandible does this

Answer 24

droops with no jaw movement

Question 25

during jaw jerk reflex if the jaw snap shuts it indicates

Answer 25

an upper motor neuron lesion

Question 26

ophthalmic division joins other 2 divisions of CN V to form this ganglion

Answer 26

trigeminal ganglion

Question 27

cavernous sinus lesions affect these CN’s

Answer 27

III, IV, V, VI