Cranial Nerve Tests

Question 1

CN I is the _____ nerve

Answer 1

Olfactory

Question 2

CN II is the _____ nerve

Answer 2

Optic

Question 3

CN III is the ______ nerve, responsible for _________

Answer 3

Oculomotor

pupillary constriction, eye movement

Question 4

CN IV is the ______ nerve, responsible for ________

Answer 4

Trochlear

Downward and inward movement of the eye

Question 5

CN V is the ______ nerve

Answer 5

Trigeminal

Question 6

The motor function of CN V is ________

Answer 6

control of masseter and temporalis muscle

Question 7

The sensory function of CN V is ________

Answer 7

V1 - opthalmic branch
V2 - maxillary branch
V3 - mandibular branch

Question 8

CN VI is the ______ nerve, responsible for ________

Answer 8

Abducens

lateral deviation of eye

Question 9

CN VII is the _____ nerve, responsible for _________

Answer 9

Facial

motor: muscles of facial expression
sensory: taste of anterior 2/3 of tongue

Question 10

CN VIII is the ____ nerve, responsible for ________

Answer 10

Vestibulocochlear

balance and hearing

Question 11

CN IX is the _____ nerve, responsible for ________

Answer 11

Glossopharyngeal

motor: pharynx - swallowing
sensory: taste of posterior 1/3 of tongue - bitter

Question 12

CN X is the ____ nerve, responsible for _______

Answer 12

Vagus

motor: palate, pharynx, larynx
sensory: pharynx, larynx

Question 13

CN XI is the _____ nerve, responsible for ______

Answer 13

Spinal Accessory

motor: SCM, trapezius

Question 14

CN XII is the ______ nerve, responsible for _______

Answer 14

Hypoglossal

motor: tongue

Question 15

The neurological test for CN II is testing ________

Answer 15

visual fields by confrontation

Question 16

The neurological test for CN II and III is testing _______ using the following techniques _______

Answer 16

pupillary reaction to light

1) direct reaction
2) indirect reaction
3) near response

Question 17

The neurological test for CN III, IV, VI is testing _______

Answer 17

6 cardinal directions of gaze

Question 18

The neurological test for CN V is testing ________

Answer 18

motor: masseter, temporalis
sensory: trigeminal branches (sharp/dull), corneal reflex

Question 19

A unilateral lesion of CN VII is known as ______

Answer 19

Bell’s Palsy

Question 20

Neurological test for CN VII is _____

Answer 20

1) raise both eyebrows
2) ask patient to frown
3) close both eyes tightly
4) show upper and lower teeth
5) smile
6) puff out both cheeks

Question 21

Name the neurological tests for CN VIII. What does each test?

Answer 21

Weber Test - lateralization of hearing

Rinne Test - air conduction vs. bone conduction