Brainstem Nucleus Lesions

Question 1

Motor nucelus of VII

Answer 1

i/l facial palsy, loss of coneal reflex

Question 2

Nucelus ambiguus

Answer 2

• dysarthria
• dysphagia,
• hoarseness
• uvula deviates away from affected side

Question 3

Occulomotor nucleus

Answer 3

• ext strabismus

- complete ptosis

Question 4

Trochlear nucleus

Answer 4

• c/l eye is down and out

- head tilt towards side of lesion

Question 5

Hypoglossal nucleus

Answer 5

I/l paralysis and atrophy of int tongue mm

Question 6

Main sensory nucleus of V

Answer 6

-i/l loss of prop/ 2pt tact from 1/2 face

Question 7

Descending nucleus of V

Answer 7

-i/l loss of p/T from 1/2 face

Question 8

Vestibular nucleus

Answer 8

• nystagmus

- probs with equilibrium and posture

Question 9

motor nucleus of V

Answer 9

i/l paralysis & atrophy of mm of mastication, diminished jaw jerk