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

Trigeminal nerve

Question 6

CN VI

Answer 6

Abducens nerve

Question 7

CN VII

Answer 7

Facial nerve

Question 8

CN VIII

Answer 8

Vestibulocochlear nerve

Question 9

CN IX

Answer 9

Glossopharyngeal nerve

Question 10

CN X

Answer 10

Vagus nerve

Question 11

CN XI

Answer 11

Accessory nerve

Question 12

CN XII

Answer 12

Hypoglossal nerve

Question 13

CN I function

Answer 13

Olfactory nerve

Special afferent- smell

Question 14

CN II function

Answer 14

Optic nerve

Special afferent-sight

Question 15

CN III function

Answer 15

Oculomotor nerve

Eye movement, pupil constriction

Question 16

CN IV function

Answer 16

Trochlear nerve

Eye movement

Question 17

CN V function

Answer 17

Trigeminal nerve
Somatosensory information of face (touch, pain)
Muscles of mastication

Question 18

CN VI function

Answer 18

Abducens nerve

Eye movement

Question 19

CN VII function

Answer 19

Facial nerve
Taste anterior 2 thirds of the tongue
Somatosensory info from ear
Muscles of facial expression

Question 20

CN VIII function

Answer 20

Vestibulocochlear

Special afferent- hearing and balance

Question 21

CN IX function

Answer 21

Glossopharyngeal nerve
Taste posterior third of the tongue
Somatosensory info from tongue, tonsils and pharynx
Muscles in swallowing and gag reflex

Question 22

CN X function

Answer 22

Vagus nerve

Sensory, motor and autonomic functions of viscera (glands, digestion, heart rate)

Question 23

CN XI function

Answer 23

Accessory nerve

Muscles- sternocleidomastoid and trapezius

Question 24

CN XII function

Answer 24

Hypoglossal nerve

Enables tongue movement- innervates muscles of the tongue