Cranial Nerves

Question 1

CN I test

Answer 1

Olfactory - ID smells: vanilla vs vinegar. Close eyes and one nostril.

Question 2

CN II test

Answer 2

Optic - Snellen Chart 20’ away.

Question 3

CN II - visual fields

Answer 3

Cover 1 eye and test nasal and temporal

Question 4

Pupillary Reflexes

Answer 4

CN II and III (oculomotor). Flashlight.

Question 5

Eye movements: saccades, smooth pursuits.

Answer 5

CN III, IV, VI.

Follow pen.

Question 6

CN III test

Answer 6

Turns eye up, down, and in. Elevates Eyelid

Question 7

CN IV test

Answer 7

turns eye down when adducted

Question 8

CN VI test

Answer 8

turns eye out

Question 9

CN V: sensory test

Answer 9

Trigeminal - cotton on 3 regions of face.

Question 10

CN V: motor test

Answer 10

ask to “chomp” - muscles of mastication

Question 11

CN VII test

Answer 11

Facial - smile, puff cheeks, wrinkle forehead, pucker lips.

Question 12

CN VIII - vestibular test

Answer 12

Vestribulocochlear - VOR, nystagmus with scarf

Question 13

CN VIII - cochlear test

Answer 13

Hearing - close eyes hear rubbing of fingers

Question 14

CN IX, X test

Answer 14

Glossopharyngeal and vagus - open mouth - AHhh. Palate elevation.

Question 15

CN XI test

Answer 15

Spinal Accessory - shrug shoulders, turn and flex with resistance.

Question 16

CN XII test

Answer 16

Hypoglossal - stick tongue out and move.

Question 17

CN III nuclei location

Answer 17

midbrain

Question 18

CN IV nuclei location

Answer 18

midbrain

Question 19

CN V nuclei location

Answer 19

pons

Question 20

CN VI nuclei location

Answer 20

pons

Question 21

CN VII nuclei location

Answer 21

pons

Question 22

CN VII nuclei location

Answer 22

pons

Question 23

CN IX nuclei location

Answer 23

Medulla

Question 24

CN X nuclei location

Answer 24

medulla

Question 25

CN XI nuclei location

Answer 25

medulla

Question 26

CN XII nuclei location

Answer 26

medulla