Cranial Nerves

Question 1

CN I

Answer 1

Olfactory; sensory; conducts olfactory sensation from nose to brain; exits at cribriform plate of ethmoid bone; targets nose

Question 2

CN II

Answer 2

Optic; sensory; vision; exits at the optic canal of sphenoid bone; targets the retina

Question 3

CN III

Answer 3

Oculomotor; motor; moves eye; exits at superior orbital fissure; innervates 4 extrinsic muscles and the intrinsic eye muscles

Question 4

CN IV

Answer 4

Trochlear; motor; moves eye; exits through the superior orbital fissure; targets superior oblique of the eye

Question 5

CN V

Answer 5

Trigeminal; mixed; receives sensory information from face, oral cavity, nasal cavity, meninges, and anterior scalp, innervates muscles of mastication; exits superior orbital fissure, foramen rotundum, and foramen ovale; targets face

Question 6

CN VI

Answer 6

Abducens; motor; moves eye; exits superior orbital fissure; targets lateral rectus of eye

Question 7

CN VII

Answer 7

Facial; mixed; conducts taste sensation from anterior 2/3 of tongue; motor output to facial expression muscles, lacrimal gland, and salivary glands inferior to the tongue; exits internal acoustic meatus; targets face and oral cavity

Question 8

CN VIII

Answer 8

Vestibulocochlear; sensory; conducts sound information to brain; exits internal acoustic meatus; targets inner ear

Question 9

CN IX

Answer 9

Glossopharyngeal; mixed; taste and touch sensation from posterior 1/3 of the tongue, innervates stylopharyngeus muscle and parotid salivary gland, exits jugular foramen; targets tongue/pharynx

Question 10

CN X

Answer 10

Vagus; mixed; sensory and motor control in head, neck, and several organs; exits jugular foramen; targets head and neck; thoracic and abdominal cavities

Question 11

CN XI

Answer 11

Accessory; motor; innervates trapezius, sternocleidomastoid, and works with X to innervate pharyngeal muscles; jugular foramen exit; targets neck

Question 12

CN XII

Answer 12

Hypoglossal

Question 13

Olfactory; sensory; conducts olfactory sensation from nose to brain; exits at cribriform plate of ethmoid bone; targets nose

Answer 13

CN I

Question 14

Optic; sensory; vision; exits at the optic canal of sphenoid bone; targets the retina

Answer 14

CN II

Question 15

Oculomotor; motor; moves eye; exits at superior orbital fissure; innervates 4 extrinsic muscles and the intrinsic eye muscles

Answer 15

CN III

Question 16

Trochlear; motor; moves eye; exits through the superior orbital fissure; targets superior oblique of the eye

Answer 16

CN IV

Question 17

Trigeminal; mixed; receives sensory information from face, oral cavity, nasal cavity, meninges, and anterior scalp, innervates muscles of mastication; exits superior orbital fissure, foramen rotundum, and foramen ovale; targets face

Answer 17

CN V

Question 18

Abducens; motor; moves eye; exits superior orbital fissure; targets lateral rectus of eye

Answer 18

CN VI

Question 19

Facial; mixed; conducts taste sensation from anterior 2/3 of tongue; motor output to facial expression muscles, lacrimal gland, and salivary glands inferior to the tongue; exits internal acoustic meatus; targets face and oral cavity

Answer 19

CN VII

Question 20

Vestibulocochlear; sensory; conducts sound information to brain; exits internal acoustic meatus; targets inner ear

Answer 20

CN VIII

Question 21

Glossopharyngeal; mixed; taste and touch sensation from posterior 1/3 of the tongue, innervates stylopharyngeus muscle and parotid salivary gland, exits jugular foramen; targets tongue/pharynx

Answer 21

CN IX

Question 22

Vagus; mixed; sensory and motor control in head, neck, and several organs; exits jugular foramen; targets head and neck; thoracic and abdominal cavities

Answer 22

CN X

Question 23

Accessory; motor; innervates trapezius, sternocleidomastoid, and works with X to innervate pharyngeal muscles; jugular foramen exit; targets neck

Answer 23

CN XI

Question 24

Hypoglossal

Answer 24

CN XII