The Cranial Nerves

Question 1

CN I

Answer 1

Olfactory Nerve

Question 2

CN II

Answer 2

optic nerve

Question 3

CN III

Answer 3

oculomotor nerve

Question 4

CN IV

Answer 4

trochlear nerve

Question 5

CN V

Answer 5

trigemineal nerve

Question 6

CN VI

Answer 6

abducens nerve

Question 7

CN VII

Answer 7

facial nerve

Question 8

CN VIII

Answer 8

auditory nerve

Question 9

CN IX

Answer 9

glossopharyngeal nerve

Question 10

CN X

Answer 10

vagus

Question 11

CN XI

Answer 11

spinal accessory nerve

Question 12

CN XII

Answer 12

hypoglossal nerve

Question 13

CN I EMERGES FROM?

Answer 13

passes through the cribform plate of the ethmoid and terminates in the olfactory bulb

Question 14

CN II Emerges from?

Answer 14

extends from the posterior aspect of the eyeball and passes through the optic canal to join the optic chiasm

Question 15

CN III emerges from?

Answer 15

interpeduncular fossa of the midbrain

Question 16

CN IV emerges from?

Answer 16

emerge from the neuron cell bodies in the trochlear nucleus within the midbrain, pass dorsally, cross inthe dorsal aspect of the midbrain and then emerges from the dorsal surface of the mmidbrain at the lower border of the inferior colliculus.

Question 17

CN V emerges from?

Answer 17

the lasteral surface of the pons

Question 18

CN VI emerges from?

Answer 18

pontomedullary junction, near the midline

Question 19

CN VII emerges from?

Answer 19

emerges from the pontomedullary junction, lateral to CN VI

Question 20

CN VIII emerges from?

Answer 20

emerges from the pontomedullary junction, lateral to CN VII

Question 21

CN IX emerges from?

Answer 21

emerges from post-olivary sulcus of the medulla

Question 22

CN X emerges from?

Answer 22

emerges from post-olivary sulcus of the medulla, below the CN IX

Question 23

CN XI emerges from?

Answer 23

emerges from post-olivary sulcus of the medulla below CN X

Question 24

CN XII emerges from?

Answer 24

emerges from the pre-olivary sulcus of the medulla