Cranial Nerves

Question 1

CN I

Answer 1

• olfactory
• sensory type
• function: smell

Question 2

CN II

Answer 2

• optic
• sensory type
• function: vision

Question 3

CN III

Answer 3

• oculomotor
• motor type
• function: eye movement, pupil size, focusing lens

Question 4

CN IV

Answer 4

• trochlear
• motor type
• eye movement

Question 5

CN V

Answer 5

• trigeminal
• both sensory and motor type
• function: sensations from the head and teeth, chewing

Question 6

CN VI

Answer 6

• abducent
• motor type
• function: eye movement

Question 7

CN VII

Answer 7

• facial
• both sensory and motor type
• function: face and scalp movement, salivation, tears, taste

Question 8

CN VIII

Answer 8

• vestibulocochlear
• sensory type
• function: balance, hearing

Question 9

CN IX

Answer 9

• glossopharyngeal
• both sensory and motor type
• function: tongue movement, swallowing, salivation, taste

Question 10

CN X

Answer 10

• vagus
• both sensory and motor type
• function: sensory from gastrointestinal tract and respiratory tree; motor to larynx, pharynx, parasympathetic; motor to abdominal and thoracic organs

Question 11

CN XI

Answer 11

• accessory
• motor type
• function: head movement with neck muscles, accessory motor with vagus

Question 12

CN XII

Answer 12

• hypoglossal
• motor type
• function: tongue movement