Testing of cranial nerves

Question 1

CN I

Answer 1

smell

Question 2

CN II

Answer 2

visual acuity
visual fields
 pupillary reactions
fundoscopy
colour vision

Question 3

CN III, IV, VI

Answer 3

any evidence of ptosis?
pupil of equal size?
pupillary reactions
eye movements – vertical and horizontal

Question 4

CN V

Answer 4

sensation in the ophthalmic, maxillary and mandibular divisions

power in the muscles of mastication

corneal reflex

jaw jerk

Question 5

CN VII

Answer 5

Muscles of facial expression

Corneal reflex

Taste

Question 6

CN VIII

Answer 6

Hearing using Rinne’s and Weber’s tests

Vestibular function using Dix-Hallpike manoevre and Untenberger’s test

Question 7

CN IX and X

Answer 7

movement of the palate

gag reflex

quality of speech

quality of cough

Question 8

CN XI

Answer 8

Head turning and shoulder shrugging

sternomastoid and trapezius function

Question 9

CN XII

Answer 9

Appearance, movement and power of tongue

Question 10

What is the afferent and efferent of cranial nerve reflex of gag reflex

Answer 10

Afferent IX

Efferent X

Question 11

What is the afferent and efferent of cranial nerve reflex pupil light reaction

Answer 11

Afferent CN II

Efferent CN III

Question 12

What is the afferent and efferent of cranial nerve reflex corneal reflex

Answer 12

Afferent CN V

Efferent CN VII

Question 13

What is the afferent and efferent of cranial nerve reflex

Answer 13

Afferent and Efferent CN V