Cranial Nerves

Question 1

What is CN I? Motor, sensory, or mixed?

Answer 1

olfactory, sensory

Question 2

Is The olfactory visceral or somatic sensory?

Answer 2

visceral

Question 3

what structure does The olfactory nerve innervate?

Answer 3

olfactory tissue

Question 4

What is CN II? Motor, sensory, or mixed?

Answer 4

optic, sensory

Question 5

is CN II visceral or somatic sensory?

Answer 5

somatic

Question 6

what structure does The optic nerveinnervate?

Answer 6

optic tissue

Question 7

Where does The optic nerve decussate?

Answer 7

optic chiasma

Question 8

What is CN III? Motor, sensory, or mixed?

Answer 8

occulomotor, motor

Question 9

is the occulomotor visceral or somatic motor?

Answer 9

both

Question 10

what skeletal muscles are innervated by the occulomotor

Answer 10

dorsal rectus, medial rectus, ventral rectus, inferior oblique

Question 11

what smooth muscles are innervated by the occulomotor

Answer 11

intrinsic eye muscles

Question 12

What is CN IV? Motor, sensory, or mixed?

Answer 12

trochlear, motor

Question 13

is the trochlear visceral or somatic motor?

Answer 13

somatic

Question 14

what does the trochlear innervate?

Answer 14

dorsal oblique

Question 15

What is CN V? Motor, sensory, or mixed?

Answer 15

Trigeminal, mixed

Question 16

is the trigeminal visceral or somatic motor/ sensory?

Answer 16

Somatic motor, somatic sensory

Question 17

What muscles does the trigeminal innervate? Sensory structures?

Answer 17

mandibular arch muscles, skin of head, teeth, nasal passages,tongue

Question 18

What is CN VI? Motor, sensory, or mixed?

Answer 18

Abducens, motor

Question 19

is the abducens somatic or visceral motor?

Answer 19

somatic motor

Question 20

what does the Abducens innervate

Answer 20

lateral rectus

Question 21

What is CN VII? Sensory, motor, or mixed?

Answer 21

Facial, mixed

Question 22

Is the facial nerve visceralor somatic?

Answer 22

both

Question 23

What does the facial nerve innervate?

Answer 23

muscles of facial expression, lacrimal, sublingual, submandibular

Question 24

what sensory structure does the facial nerve innervate?

Answer 24

taste buds in anterior 2/3 of tongue, ectoderm in fishes

Question 25

what is CN VIII? Sensory, motor, or mixed?

Answer 25

vestibulocochlear, sensory

Question 26

IS the vestibulocochlear visceral or somatic?

Answer 26

somatic

Question 27

what does the vestibulocochlear innervate?

Answer 27

semi-circular canals,cochlea

Question 28

What is CN IX? Sensory, motor,or mixed?

Answer 28

glossopharyngeal, mixed

Question 29

is the glossopharyngeal somatic or visceral?

Answer 29

both

Question 30

what muscles does the glossopharyngeal innervate?

Answer 30

muscles derived from 1st branchial arch

Question 31

what sensory structures does the glossopharyngeal innervate?

Answer 31

posterior 1/3 of tongue

Question 32

What is CN X? Sensory, motor, or mixed?

Answer 32

vagus, mixed

Question 33

Is the vagus somatic or visceral?

Answer 33

both

Question 34

what sensory structures does the vagus innervate?

Answer 34

posterior pharynx, thoracic and abdominal viscera

Question 35

What muscles does the vagus innervate? Glands?

Answer 35

intrinsic muscles of the larynx, smooth muscle, glands of thoracic, abdominal viscera, cardiac muscle

Question 36

What is CN XI? Sensory, motor, mixed?

Answer 36

accessory, motor

Question 37

is the accessory somatic or visceral?

Answer 37

somatic

Question 38

what does the accessory innervate?

Answer 38

sternomastoid, trapezius, cleidomastoid

Question 39

what is CN XII? sensory, motor, mixed?

Answer 39

hypoglossal, motor

Question 40

is the hypoglossal visceral or somatic?

Answer 40

somatic

Question 41

what does the hypoglossal innervate?

Answer 41

muscles of tongue