basal ganglia

Question 1

tell me the abt the direct pathway of basal ganglia

Answer 1

premotor cortex, supplementary motor cortex < motor cortex < putamen < GPE< GPI < VA/VL thalamic nuclei

Question 2

which is the main nucleus involved in indirect basal ganglia pathway

Answer 2

thalamic nuclei if luysi

Question 3

what kind if effect will dopamine have in movement ?

Answer 3

positive

Question 4

from where does dopamine comes from

Answer 4

substantial niagra

Question 5

where are gabaenegric neuron present?

Answer 5

Putamen

Question 6

GABAENEGIC neuron has a property of ?

Answer 6

Co transmission in which one neuron can have 2 types of neurotransmitters

Question 7

in case of direct pathway what kind of other neurotransmitter we have ?

Answer 7

substance p and it will released on GPI

Question 8

in case of indirect pathway what kind of other neurotransmitter we have ?

Answer 8

we have enkephalin and it will be released on GPE

Question 9

dopamine act on D1 receptor what will be the response

Answer 9

have excitatory effect have a more positive effect

Question 10

dopamine act on D2 receptor what will be the response

Answer 10

have an inhibitory effect on the inhibitory circuit so they will also have a positive effect

Question 11

the most prominent type of cells in the cerebellum cortex are?

Answer 11

Purkinje cells

Question 12

and the axons of Purkinje will terminate in?

Answer 12

deep cerebellar nuclei which are called dentate nucleus

Question 13

in pons what kind of nuclei do we had?

Answer 13

pontine nuclei

Question 14

there are 2 types of termination in the cerebellar cortex

Answer 14

mossy fibers termination through pontocerebellar tract

Question 15

what kind of tract crosses in midbrain through the pons

Answer 15

pontocerebellar tract called as transverse pontine fibers

Question 16

which tract covers the whole medial cerebellar peduncle

Answer 16

pontocerebellar tract

Question 17

which tract directly terminates on Purkinje cells

Answer 17

olivocerebellar tract going through the inferior cerebellar peduncle called climbing fiber
and these climbing fibers originates from inferior olivary nucleus

Question 18

which 2 tract arises from the dentate nucleus

Answer 18

DENTORUBRO TRACT
DENTOTHALAMIC TRACT

Question 19

Which tract is related to flexor muscle and postural control?

Answer 19

rubrospinal tract

Question 20

which 2 tracts has importance in postural control

Answer 20

rubrospinal tract
reticulospinal tract

Question 21

whuch tract is related to axial muscles & in postural control

Answer 21

reticulospinal tract

Question 22

tell me abt reticulospinal tract

Answer 22

we have a nucleus called pedunculopontine nucleus , will receive input from putamen we will have a tract going to reticular formation and from that, we will have reticulospinal tract goin to spinal cord