Cranial Nerves

Question 1

I

Answer 1

• olfactory

- smell

Question 2

II

Answer 2

• optic

- sight

Question 3

III

Answer 3

• oculomotor
• levator of eyelid
• upward, downward, medial gaze
• reaction to light
• pupil responses

Question 4

IV

Answer 4

• trochlear

- downward and lateral gaze

Question 5

V

Answer 5

• trigeminal
• touch/pain to skin of face, mucous membranes in nose, sinuses, mouth, ant. tongue
• muscles of mastication

Question 6

VI

Answer 6

• abducens

- lateral gaze

Question 7

VII

Answer 7

• facial
• taste to anterior tongue
• muscles of facial expression
• lacrimal, submandibular, sublingual glands

Question 8

VIII

Answer 8

• vestibulocochlear

- hearing, balance

Question 9

IX

Answer 9

• glosspharyngeal
• touch/pain to posterior tongue, pharynx
• taste to posterior tongue
• pharynx muscles, parotid gland
• gag reflex
• ability to swallow

Question 10

X

Answer 10

• vagus
• touch/pain to pharynx, larynx, bronchi
• taste to tongue, epiglottis
• muscles of palate, pharynx, larynx
• thoracic and abdominal viscera
• gag reflex
• ability to swallow
• “say ahhh”

Question 11

XI

Answer 11

• spinal accessory

- SCM, trapzius

Question 12

XII

Answer 12

• hypoglossal
• muscles of tongue
• tongue protrusion (if injured, tongue deviates TOWARD injured side)