Cranial Nerves

Question 1

CN I

Answer 1

Olfactory: olfaction

Question 2

CN II

Answer 2

Optic: vision

Question 3

CN III

Answer 3

Oculomotor: eye movement, pupil constriction.

Question 4

CN IV

Answer 4

Trochlear: eye movement

Question 5

CN V

Answer 5

Trigeminal: facial sensation, muscles of mastication

Question 6

CN VI

Answer 6

Abducens: eye movement

Question 7

CN VII

Answer 7

Facial: facial expression, taste, salivation, lacrimation

Question 8

CN VIII

Answer 8

Vestibulocochlear: hearing, equilibrium

Question 9

CN IX

Answer 9

Glossopharyngeal: pharynx, salivation, carotid body reflexes

Question 10

CN X

Answer 10

Vagus: parasympathetics, larynx, pharynx, aortic arch reflexes

Question 11

CN XI

Answer 11

Spinal accessory: head turning (SCM and traps)

Question 12

CN XII

Answer 12

Hypoglossal: tongue movement

Question 13

Which CN emerge from cerebrum?

Answer 13

1, 2

Question 14

Which CN emerge from midbrain?

Answer 14

3, 4

Question 15

Which CN emerge from the pons?

Answer 15

5, 6, 7, 8

Question 16

Which CN emerge from the medulla?

Answer 16

9, 10, 11, 12

Question 17

CN V1

Answer 17

opthalmic nerve

Question 18

CN V2

Answer 18

maxillary nerve

Question 19

CN V3

Answer 19

mandibular nerve

Question 20

Cribiform plate

Answer 20

I

Question 21

optic canal

Answer 21

II

Question 22

superior orbital fissure

Answer 22

III, IV, VI, and V1

Question 23

foramen rotundum

Answer 23

V2

Question 24

foramen ovale

Answer 24

V3

Question 25

internal auditory meatus

Answer 25

VII, VIII; to auditory canal, then VII exits skull

Question 26

stylomastoid foramen

Answer 26

VII (from auditory canal to exit skull)

Question 27

jugular foramen

Answer 27

IX, X, XI

Question 28

hypoglossal canal

Answer 28

XII (obvs); just ant to foramen magnum

Question 29

foramen magnum

Answer 29

ascending fibres of XI