12-8: Cranial Nerves - by name

Question 1

Olfactory - number and type

Answer 1

I; sensory

Question 2

Olfactory - function

Answer 2

smell

Question 3

Olfactory - damage

Answer 3

anosmia

Question 4

Optic - number and type

Answer 4

II; sensory

Question 5

Optic - function

Answer 5

vision

Question 6

Optic - damage

Answer 6

blindness, anopsias

Question 7

Oculomotor - number and type

Answer 7

III; motor

Question 8

Oculomotor - function

Answer 8

movement of the eyeball and eyelid, focus lens, constrict pupil

Question 9

Oculomotor - damage

Answer 9

diplopia (double vision), ptosis (dropping eyelids), external strabismus (eye moves laterally)

Question 10

Trochlear - number and type

Answer 10

IV; motor

Question 11

Trochlear - function

Answer 11

movement of eye inferolaterally

Question 12

Trochlear - damage

Answer 12

diplopia

Question 13

Trigeminal - number and type

Answer 13

V; mixed; largest cranial nerve

Question 14

Trigeminal - function

Answer 14

sensory: touch, pain, and temperature from face
motor: controls muscles of chewing (MOM)

Question 15

Trigeminal - damage

Answer 15

paralysis of chewing muscles; trigeminal neuralgia

Question 16

Abducens - number and type

Answer 16

VI; motor

Question 17

Abducens - function

Answer 17

abducts eye

Question 18

Abducens - damage

Answer 18

internal strabismus (cross eyed)

Question 19

Facial - number and type

Answer 19

VII; mixed

Question 20

Facial - function

Answer 20

sensory: taste from anterior 2/3rds of tongue

motor function: muscles of facial expression

autonomic: tears and saliva

Question 21

Facial - damage

Answer 21

Bells Palsy (paralysis of facial muscles on affected side, partial loss of taste)

Question 22

Vestibulocochlear - number and type

Answer 22

VIII; sensory

Question 23

Vestibulocochlear - function

Answer 23

sense of hearing and sense of equilibrium

Question 24

Vestibulocochlear - damage

Answer 24

verigo, nystagmus (rapid, involuntary eye movements), nerve deafness

Question 25

Glossopharyngeal - number and type

Answer 25

IX; mixed

Question 26

Glossopharyngeal - function

Answer 26

sensory: taste, touch, and pain from throat and back of tongue motor: swallowing and saliva production

Question 27

Vagus - number and type

Answer 27

X; mixed; only cranial nerve to extend beyond head and neck

Question 28

Vagus - functions

Answer 28

sensory: sensations from internal organs motor: contraction of smooth muscle and secretions of digestive glands

Question 29

Vagus - damage

Answer 29

loss of voice, dysphagia, impaired digestion; destruction of both = death

Question 30

Accessory - number and type

Answer 30

XI; motor

Question 31

Accessory - function

Answer 31

move head and neck

Question 32

Accessory - damage

Answer 32

can't shrug shoulders or turn head (head turns towards injured side)

Question 33

Hypoglossal - number and type

Answer 33

XIII; motor

Question 34

Hypoglossal - function

Answer 34

tongue movements involved in swallowing and speech

Question 35

Hypoglossal - damage

Answer 35

difficulty with speech and swallowing