Cranial Nerves

Question 1

Mnemonic for names of the cranial nerves

Answer 1

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Question 2

Mnemonic for pathways of cranial nerves

Answer 2

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Question 3

CN I

Answer 3

Olfactory (sensory)

Question 4

CN II

Answer 4

Optic (sensory)

Question 5

CN III

Answer 5

Oculomotor (motor)

Question 6

CN IV

Answer 6

Trochlear (motor)

Question 7

CN V

Answer 7

Trigeminal (both)

Question 8

CN VI

Answer 8

Abducens (motor)

Question 9

CN VII

Answer 9

Facial (both)

Question 10

CN VIII

Answer 10

Vestibulocochlear (sensory)

Question 11

CN IX

Answer 11

Glossopharyngeal (both)

Question 12

CN X

Answer 12

Vagus (both)

Question 13

CN XI

Answer 13

Accessory (motor)

Question 14

CN XII

Answer 14

Hypoglossal (motor)

Question 15

Olfactory Nerve

Answer 15

Sensory nerve responsible for sense of smell

Question 16

Optic Nerve

Answer 16

Sensory nerve that controls central and peripheral vision

Question 17

Oculomotor Nerve

Answer 17

Motor nerve that controls iris contraction and 5 of the 7 muscles that move the eye

Question 18

Trochlear Nerve

Answer 18

Motor nerve that innervates the super oblique muscle that is involved in lateral eye movement

Question 19

Trigeminal Nerve

Answer 19

Innervates much of the face
Sensory: Transmits pain, touch, temperature, and pressure sensations
Motor: Innervates muscles of mastication, tensor tympani, tensor veli palatini, myohyloid, and digastric muscles

Question 20

3 branches of the trigeminal nervw

Answer 20

1.) Ophthalmic (V1, sensory)
2.) Maxillary (V2, sensory)
3.) Mandibular (V3, motor and sensory)

Question 21

Abducens Nerve

Answer 21

Motor nerve that controls the lateral rectus muscle

Question 22

Facial Nerve

Answer 22

Sensory: Contributes taste info from anterior 2/3 of mouth, floor of mouth, and palate
Motor: Controls facial expression for upper portion of face and innervates stapedius, auricular, stylohyoid, and digastric muscles

Question 23

Vestibulocochlear Nerve

Answer 23

Sensory nerve that transmits auditory info from cochlea and vestibular info from utricle, saccule, and semi-circular canals

Question 24

Glossopharyngeal Nerve

Answer 24

Sensory: Transmits taste info from posterior 1/3 of tongue, and touch sensations from pinnae/TM
Motor: Controls stylopharyngeus muscle

Question 25

Vagus Nerve

Answer 25

Sensory: Transmits some taste sensation from palate and epiglottis plus info from external auditory meatus, TM, and pharynx Motor: Controls constrictor muscles of the pharynx and intrinsic muscles of the larynx

Question 26

Accessory Nerve

Answer 26

Motor nerve that controls neck muscle contraction

Question 27

Hypoglossal Nerve

Answer 27

Motor nerve that innervates all intrinsic and most extrinsic tongue muscles