neuro 10

Question 1

axons after decussation in 2nd order neuron called ?

Answer 1

medial leminiscus

Question 2

what is the input of inferior olivary complex ?

Answer 2

1-motor : from cerebral cortex , basal ganglia , red neucleus
2- sensory : from spinal cord by spinolivary tract

Question 3

brief pathway of inferior olivary complex ?

Answer 3

input motor and sensory => output olivocerebellar fibers by inferior peduncle to cerebellum
distrubance cause ataxia because it controls cerebellar movement

Question 4

in pyramidal area present

Answer 4

CSF + Arcuate nucleus

Question 5

extrapyramidal area

Answer 5

red nucleus

Question 6

ataxia caused by distruction of ?

Answer 6

1- inferior olivary neuclear complex ( in cerebellar relay neuclei)
2- red nucleus in midbrain

Question 7

give me names for relay nuclus in M.O?

Answer 7

1- accesory coniate
2- arcuate
3-inferior olivary

Question 8

give me names for relay nuclus in midbrain?

Answer 8

red neucleus

Question 9

substatia nigra secrete ?

Answer 9

dopamin from ant (compecta) , GABA . from post. reticularis and all inhibitory control caudate neucleus and thalamus (VA , VL)

Question 10

give me 2 names of neuclei effect thalamus and their effect ?

Answer 10

1- substantia nigra
2- red neucleus 
# all effect on VA +VL 
1-=>inhibit their activity
2-=>relay motor inpulse from cerebrun and cerebellum to thalamus VA +VL