cranial nerves

Question 1

CN I name

Answer 1

olfactory nerve

Question 2

CN II name

Answer 2

optic nerve

Question 3

CN III name

Answer 3

oculomotor nerve

Question 4

CN IV name

Answer 4

trochlear nerve

Question 5

CN V name

Answer 5

trigeminal nerve

Question 6

CN VI name

Answer 6

abducens nerve

Question 7

CN VII name

Answer 7

Facial nerve

Question 8

CN VIII name

Answer 8

vestibulocochlear nerve

Question 9

CN IX name

Answer 9

glossopharyngeal nerve

Question 10

CN X name

Answer 10

vagus nerve

Question 11

CN XI name

Answer 11

accessory nerve (spinal accessory nerve)

Question 12

CN XII name

Answer 12

hypoglossal nerve

Question 13

CN I sensory function

Answer 13

olfaction (smell)

Question 14

CN II sensory function

Answer 14

vision

Question 15

CN III somatic motor function

Answer 15

four eye muscles - medial, superior and inferior rectus and inferior oblique

levator palpebrae superioris (elevation of eyelid

Question 16

CN III parasympathetic motor (autonomic) function

Answer 16

innervated sphincter pupillae ( pupil constrictor) ciliary muscles to make lens of eye more rounded

Question 17

CN IV somatic motor function

Answer 17

superior oblique extrinsic eye muscle

Question 18

CN V sensory function

Answer 18

sensory of anterior scalp, nasal cavity, nasopharynx, entire face, most of oral cavity, teeth, anterior 2/3 of belly, tongue, part of auricle of ear, meninges

Question 19

CN V somatic motor function

Answer 19

muscles of mastication, mylohyoid, digastric (anterior belly), tensor tympani, tensor veli palatini

Question 20

CN VI somatic motor function

Answer 20

lateral rectus extrinsic eye muscle

Question 21

CN VII sensory function

Answer 21

taste from anterior 2/3 of tongue

Question 22

CN VII somatic motor function

Answer 22

muscles of facial expression, digastric( posterior belly) stylohyoid, stapedius

Question 23

CN VII parasympathetic motor (autonomic) function

Answer 23

incr. secretion form lacrimal gland of eye, submandibular and sublingual salivary glands

Question 24

CN VII sensory function

Answer 24

hearing ( cochlear branch) and equilibrium ( vestibular branch)

Question 25

CN IX sensory function

Answer 25

general sensory and taste from posterior 1/3 of tongue, general sensroy for part of pharynx, visceral sensory from carotid bodies

Question 26

CN IX somatic motor function

Answer 26

pharyngeal muscle ( stylopharyngeus)

Question 27

CN IX parasympathetic motor function

Answer 27

increases secretion from parotid salivary gland

Question 28

CN X sensory function

Answer 28

sensory info from heart, lungs, and most abdominal organs. sensory info from external acoustic meatus, tympanic membrane, part of pharynx, laryngopharynx, and larynx

Question 29

CN X somatic motor function

Answer 29

most pharyngeal muscles, all laryngeal muscles

Question 30

CN X parasympathetic motor function

Answer 30

smooth muscle and glands of heart, lungs, larynx, most abdominal muscles

Question 31

CN XI somatic motor function

Answer 31

trapezius muscle, sternocleidomastoid muscle

Question 32

CN XII somatic motor function

Answer 32

intrinsic and extrinsic tongue muscles

Question 33

# sensory or motor or both? CN I

Answer 33

sensory

Question 35

# sensory or motor or both? CN II

Answer 35

sensory

Question 36

# sensory or motor or both? CN III

Answer 36

motor

Question 37

# sensory or motor or both? CN IV

Answer 37

motor

Question 38

# sensory or motor or both? CN V

Answer 38

both

Question 39

# sensory or motor or both? CN VI

Answer 39

motor

Question 40

# sensory or motor or both? CN VII

Answer 40

both

Question 41

# sensory or motor or both? CN VIII

Answer 41

sensory

Question 42

# sensory or motor or both? CN IX

Answer 42

both

Question 43

# sensory or motor or both? CN X

Answer 43

both

Question 44

# sensory or motor or both? CN XI

Answer 44

motor

Question 45

# sensory or motor or both? CN XII

Answer 45

motor

Question 46

# cranial exit of CN I

Answer 46

cribiform plate

Question 47

# cranial exit of CN II

Answer 47

optic canal

Question 48

# cranial exit of CN III

Answer 48

superior orbital fissure

Question 49

# cranial exit of CN V

Answer 49

superior orbital fissure foramen rotundum foramen ovale

Question 49

# cranial exit of CN IV

Answer 49

superior orbital fissure

Question 49

# cranial exit of CN VI

Answer 49

superior orbital fissure

Question 50

# cranial exit of CN VII

Answer 50

internal acoustic meatus

Question 51

# cranial exit of CN VIII

Answer 51

interal acoustic meatus

Question 52

# cranial exit of CN IX

Answer 52

jugular foramen

Question 53

# cranial exit of CN X

Answer 53

jugular foramen

Question 54

# cranial exit of CN XI

Answer 54

jugular foramen

Question 55

# cranial exit of CN XII

Answer 55

hypoglossal canal