Chapter 9 : Nervous System (Cranial Nerves)

Question 1

Cranial Nerves

Answer 1

(12 pairs)
Nerves that extend from the base of the brain and primary innervates the head and neck
(one exception vagus nerve)

Question 2

Olfactory I

Answer 2

Sensory nerve for smell

Question 3

Optic II

Answer 3

Sensory nerve for vision

Question 4

Oculomotor III

Answer 4

Motor for 4 of the 6 eye muscles

Question 5

Trochlear IV

Answer 5

Motor for 1 eye muscle

Question 6

Trigeminal V

Answer 6

Mixed nerve; motor for chewing and sensory for cheeks, nose, and mouth

Question 7

Abducens VI

Answer 7

Motor for 1 eye muscle

Question 8

Facial VII

Answer 8

Mixed nerve: motor for facial expressions and sensory for taste on the anterior tongue

Question 9

Vestibulocochlear VIII

Answer 9

Sensory for hearing and balance

Question 10

Glossopharyngeal IX

Answer 10

Mixed nerve; motor for swallowing and sensory for taste on the posterior tongue; senses pressure in carotid artery

Question 11

Vagus X (Jackpot)

Answer 11

Mixed nerve that carries impulses from and to the larynx, pharynx, thoracic, and abdominal viscera (organs)

Question 12

Accessory XI

Answer 12

Motor for trapezius and sternocleidomastoid muscles of the neck

Question 13

Hypoglossial XII

Answer 13

Mixed nerve; motor for tongue movements and sensory for tongue feeling (pain, pressure,temperature)