Cranial Nerve Disorders

Question 1

What are the special senses

Answer 1

Olfaction - I
Vision - II
Taste - VII, IX and X
Hearing and balance - VIII

Question 2

What are the odridinary sensations?

Answer 2

Mainly trigeminal (V)

Ear from VII, and IX

Question 3

What’s the parasympathetic pupillary response

Answer 3

Construction of the pupil
Loss of constriction = third nerve palsy

Question 4

What’s the sympathetic pupillary response

Answer 4

Pupillary dilation
Constricted pupil - sympathetic damage

Question 5

What is trigeminal neuralgia

Answer 5

Paroxysmal attacks of laminating pain
Middle and older ages
Cased by vascular loop
Treated medically with carbamazepine
Surgical options if medication is resistant

Question 6

What is pseudobulbar palsy?

Answer 6

Bilateral UMN lesions

Dysarthria, dysphonia, dysphagia
Spacit, immobile younger
Brisk jaw jerk
Brisk gag reflex

Question 7

Bulbar palsy

Answer 7

Bilateral LMN lesions affecting IX-XII

Waisted fasciculating tongue
Dysarthria
Dysphonia
Dysphagia

Beware of feeing these patients

Question 8

Pupillary light reaction reflex num

Answer 8

Afferent - II
Efferent - III

Question 9

Corneal reflex

Answer 9

Afferent - V
Efferent - VII

Question 10

Jaw jerk

Answer 10

Afferent and efferent - V

Question 11

Gag reflex

Answer 11

Afferent - IX
Efferent - X