Cranial Nerves

Question 1

CN I

Answer 1

Olfactory nerve

Sense of smell

Question 2

CN II

Answer 2

Optic nerve
Signals from retina

Question 3

CN III

Answer 3

Oculomotor nerve
Motor function of extraocular muscles and pupil

Question 4

CN IV

Answer 4

Trochlear nerve
Motor for extraocular muscle

Question 5

CN V

Answer 5

Trigeminal nerve
Motor to chewing muscles
Sensory to eyelids, cornea, nasal mucosa, mouth

Question 6

CN VI

Answer 6

Abducens nerve
Motor to extraocular muscle and retractor bulbi

Question 7

CN VII

Answer 7

Facial nerve
Motor to eyelids, ears, lips
Sensory to medical pinna and rostral taste buds

Question 8

CN VIII

Answer 8

Vestibular nerve
Sensory for hearing and head position

Question 9

CN IX

Answer 9

Glossopharyngeal nerve
Motor for pharynx and salivary glands
Sensory for caudal taste buds

Question 10

CN X

Answer 10

Vagus nerve
Motor for larynx, esophagus, pharynx
Parasympathetic innervation of heart

Question 11

CN XI

Answer 11

Spinal Accessory nerve
Cranial cervical muscles

Question 12

CN XII

Answer 12

Hypoglossal nerve
Motor to the tongue

Question 13

CN XII

Answer 13

Hypoglossal nerve
Motor for the tongue