cranial nerve palsies

Question 1

CN 1

Answer 1

CN I – anosmia

Question 2

CN II –

Answer 2

blindness

Question 3

CN III

Answer 3

down and out eye, blown pupil, ptosis

Question 4

CN IV

Answer 4

diplopia due to loss of SO action, difficulty walking

down stairs

Question 5

CN V

Answer 5

loss of/altered sensation on IPSILATERAL side,

impaired corneal reflex

Question 6

CN VI

Answer 6

inability to abduct affected eye

Question 7

CN VII –

Answer 7

Bell’s palsy, Ramsay-Hunt syndrome, impaired

corneal reflex, loss of facial movements on IPSILATERAL side,

Question 8

CN VIII

Answer 8

– deafness (e.g. acoustic neuroma), vertigo

Question 9

CN IX

Answer 9

– uvular deviation AWAY from lesion, impaired gag

reflex

Question 10

CN X –

Answer 10

hoarse voice, impaired gag reflex

Question 11

CN XI –

Answer 11

cannot shrug shoulder or turn neck on affected side

Question 12

CN XII –

Answer 12

tongue deviated TOWARDS lesion