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Flashcards in basal gg Deck (29):
1

Basal gg (made up of) = ____ + ______

striatum + globus pallidus



Striatum contains:
o Caudate -< nucleus accumbens>- putamen
o Nucleus accumbens is where the caudate and putamen meet

Globus pallidus :
o Globus pallidus external (aka lateral)
o Globus pallidus internal (aka medial)

2

lentiform nucleus (made up of) = ______+_______

putamen + globus pallidus

3

Substantia nigra (made up of) = ______+ _____

pars compacta + pars reticulate

4

cc: ________: where dopamine neurons are located

pars compacta

cc: the part that dies in parkinson’s

5

_______: help to move the eyes back and forth

pars reticulata

6

name the (3) portions of the basal gg

archaestriatrum
paleostriatum
neostriatum

7

Within the archaestriatum the _____ is located. This structure holds emotions like fear/aggression/ rage . located in the temporal lobe

amygdala

8

_____& _____ are held in the paleostriatum.

What separates these 2 structures

caudate and putamen

internal capsule separates them
(nucleus accumbens)

9

basal gg is at the center of the ______

telencephalon

10

** Cortex and basal gg communicate with ea. other ____

ipsi

Cortex and basal gg communicate with the M contralateral

11

**Cortex and basal gg communicate with the M _________

contralateral

** Cortex and basal gg communicate with ea. other ipsi

12

** berebellum communicates with the M ____

ipsi

13

Cortical input gives off _____

glutamate

Basal gg input gives off GABA-ergic
Midbrain nuclei input gives off Dopaminergic

14

Basal gg input gives off____

GABA

Cortical input gives off glutamate
Midbrain nuclei input gives off Dopaminergic

15

Midbrain nuclei input gives off____

dopaminergic

Cortical input gives off glutamate
Basal gg input gives off GABA-ergic

16

List the Basal gg structure pathway

striatum --> globus pallidus --> VA/VL complex of Thalamus --> UMN in cortex

17

_____ neurons are inhiboitory cells located in the striatum

Medium spiny neurons

18

Medium spiny neurons receive axons from____
project to___

receive: Cortex & substantia nigra pars compacta

project: GPi & SNpr

19

______: controls eyes through inhibition of the superior colliculus

SNpr

20

SNpr controls eyes through the inhibition of the ____

superior colliculus

21

GPi projects to the _________ of the thalamus

ventral anterior/ventral lateral complex (VA/VL)

22

____ structure works with the motor cortex to kick starts the striatum in the direct basal gg pathway

sunstantia nigra pars compacta

23

substantia nigra pars compacta acts on the ___ receptor to effect the striatum

D1
(w/ dopamine)

24

striatum acts on the ___ receptor to stim the GPi

D2
(releases GABA)

25

cc: W/o the _________ Parkinson pt's only use the motor cortex to make movements

substantia nigra pars compacta

26

the ______ stops the direct pathway circuit

cerebellum

27

cc : lesion in the striato-thalamo-cortical pathway causes____
what pathway is this ?

direct pathway

causes bradykinesis

Parkinsons: there is a lesion so that substantia nigra pars compacta can not assist the motor cortex to start the striatum

28

Dopamine from the SNpc is _____ in the direct pathway

excitatory
-D1 receptors

29

Dopaminefrom the SNpc is _____ in the indirect pathway

inhibitory
-D2 receptors