Cranial Nerves

Question 1

Cranial nerve 1

Answer 1

Olfactory (smell)

Question 2

Cranial Nerve 2

Answer 2

Optic (vision)

Question 3

Cranial Nerve 3

Answer 3

Oculomotor (eye movement)

Question 4

Cranial Nerve 4

Answer 4

Trochlear (eye movement)

Question 5

Cranial Nerve 5

Answer 5

Trigeminal (Facial sensation and mastication)

Question 6

Cranial Nerve 6

Answer 6

Abducens (eye movement)

Question 7

Cranial Nerve 7

Answer 7

Facial (taste and movement of the face)

Question 8

Cranial Nerve 8

Answer 8

Vestibulocochlear (hearing and equilibrium)

Question 9

Cranial Nerve 9

Answer 9

Glossopharyngeal (taste and tongue movement/swallowing)

Question 10

Cranial Nerve 10

Answer 10

Vagus (parasympathetic regulation of heart, lungs, abdomen; sensory impulses of abdominal viscera, baroreceptors, chemoreceptors, taste buds)

Question 11

Cranial Nerve 11

Answer 11

Accessory (trapezius and sternocleidomastoid movement)

Question 12

Cranial Nerve 12

Answer 12

Hypoglossal (tongue movement, swallowing, speech)

Question 13

Which nerves have parasympathetic fibers?

Answer 13

• 3 (oculomotor)
• 7 (facial)
• 9 (Glossopharyngeal)
• 10 (Vagus)

Question 14

Which nerves have sensory function?

Answer 14

• 1 (olfactory)
• 2 (optic)
• 5 (trigeminal)
• 7 (facial)
• 8 (vestibulocochlear
• 9 (glossopharyngeal)
• 10 (vagus)

Question 15

Which nerves have motor function?

Answer 15

• 3 (oculomotor)
• 4 (trochlear)
• 5 (trigeminal)
• 6 (abducens)
• 7 (facial)
• 8 (vestibulocochlear)
• 9 (glossopharyngeal)
• 10 (vagus)
• 11 (accessory)
• 12 (hypoglossal)

Question 16

what is the clinical test for cranial nerve 1 (olfactory)

Answer 16

sniff aromatic substance, usually vanilla

Question 17

what is the clinical test for cranial nerve 2 (optic)

Answer 17

eye chart, or testing the point at which the person sees an object/finger moving into the visual field

Question 18

what is the clinical test for cranial nerve 8 (vestibulocochlear)

Answer 18

hearing checked by air and bone conduction using tuning fork

Question 19

what is the clinical test for cranial nerve 9 (glossopharyngeal) and 10 (vagus)

Answer 19

speak, cough, position of uvula checked, gag reflex

Question 20

what is the clinical test for cranial nerve 11 (accesory)

Answer 20

rotate head and shrug shoulders against resistance

Question 21

what is the clinical test for cranial nerve 12 (hypoglossal)

Answer 21

stick tongue in and out and move side to side