Cranial Nerves

CN I

Olfactory n.

CN II

Optic n.

CN III

Oculomotor n.

CN IV

Trochlear n.

CN V

Trigeminal n.

CN VI

Abducens n.

CN VII

Facial n.

CN VIII

Vestibulocochlear n.

CN IX

Glossopharyngeal n.

CN X

Vagus n.

CN XI

Accessory Spinal n.

CN XII

Hypoglossal n.

Type of nerve - CN I

sensory (olfactory n.)

Type of nerve - CN II

sensory (optic n.)

Type of nerve - CN III

motor (oculomotor n.)

Type of nerve - CN IV

motor (trochlear n.)

Type of nerve - CN V

both sensory and motor (trigeminal n.)

Type of nerve - CN VI

motor (abducens n.)

Type of nerve - CN VII

both sensory and motor (facial n.)

Type of nerve - CN VIII

sensory (vestibulocochlear n.)

Type of nerve - CN IX

both sensory and motor (glossopharyngeal n.)

Type of nerve - CN X

both sensory and motor (vagus n.)

Type of nerve - CN XI

motor (accessory spinal n.)

Type of nerve - CN XII

motor (hypoglossal n.)

Function of CN I

smell

Function of CN II

vision

Function of CN III

opening of eyelids and general eye movement

Function of CN IV

medial and downward eye movement

Function of CN V

facial sensation and muscles for chewing

Function of CN VI

lateral eye movement

Function of CN VII

closing of eyelids and facial movement (except chewing)

Function of CN VIII

hearing and balance

Function of CN IX

taste on posterior third of tongue and some muscles used for swallowing

Function of CN X

palate muscles and swallowing; involved in controlling heart rate, speech, digestions, and sweating

Function of CN XI

shoulder and neck movements

Function of CN XII

tongue movement