Cerebral Cortex

Question 1

Motor signs for a capsular stroke will be:

Answer 1

contralateral UE and LE spastic paralysis (CST axons affected)

Question 2

UMNs all descend down to various ________________ before _____ travel to muscles to innervate them

Answer 2

motor nuclei in the brainstem/spinal cord, LMNs

Question 3

If you lesion any UMN along its path (except the brainstem nuclei) you will get ___________ signs

Answer 3

contralateral

Question 4

A capsular stroke will result in spastic paralysis to the following 5 areas:

Answer 4

bilateral muscles of mastication, contralateral muscles of facial expression, contralateral uvula and soft palate, ipsilateral trapezius and SCM muscles, contralateral tongue muscles

Question 5

lesion to the mesencephalic nucleus produces:

Answer 5

jaw jerk reflex

Question 6

cerebral outflow tremor is due to lesion to ___________ or ________ in the ____________

Answer 6

red nucleus, rubrospinal tract, rostral midbrain

Question 7

If you lesion a brainstem nucleus you will get __________ motor signs

Answer 7

ipsilateral