Cranial Nerve Actions

Question 1

Sensory nerve responsible for smell

Answer 1

CN 1 / Olfactory

Question 2

Sensory nerve responsible for sight

Answer 2

CN 2 / Optic

Question 3

Motor nerve responsible for movement of the eyeball, constricts pupil & accommodates eye.

Answer 3

CN 3 / Oculomotor

Question 4

Motor nerve responsible for movement of the eyeball.

Answer 4

CN 4 / Trochlear AND CN 6 / Abducens

Question 5

Mixed nerve responsible for chewing and for carrying sensations from the front of the face.

Answer 5

CN 5 / Trigeminal

Question 6

Mixed nerve that supplies muscles of facial expression (moves the face), carries taste sensations from the anterior 2/3 of the tongue & is involved in salivation and crying.

Answer 6

CN 7 / Facial

Question 7

Sensory nerve that carries sensations of sound to the auditory cortex (hearing) and regulates balance.

Answer 7

CN 8 / Vestibulocochlear

Question 8

Mixed nerve that carries taste sensation from the posterior 1/3 of the tongue and is involved in salivation and swallowing. Monitors carotid body and carotid sinus.

Answer 8

CN 9 / Glossopharyngeal

Question 9

Mixed nerve that’s main task is communication TO the parasympathetic and FROM thoracic-abdominal viscera. Involved in taste (at the back of throat), swallowing, talking, lifts palate.

Answer 9

CN 10 / Vagus

Question 10

Motor nerve involved in turning the head and lifting of shoulder.

Answer 10

CN 11 / Accessory

Question 11

Motor nerve involved in moving the tongue.

Answer 11

CN 12 / Hypoglossal