Q4 Flashcards

1
Q

À quoi servent les ganglions de la base ?

A

Planification et apprentissage des mouvements

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2
Q

Quels sont les noyaux

A

Noyau caudé - Putamen = striatum

Globus pallidus - putamen= noyau lenticulaire

Noyau sous-thalamiques

Substances noire

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3
Q

Quelles sont les 3 voies dans les ngc

A
Voi direct (facilite les mouvements)
Hyper direct ( inhibe les mouvements non désirée )
Indirect (inhibe les mouvements non désirée)
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4
Q

Quoi sert le cortex

A

Organe de la prise de descision

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5
Q

Striatum

A

Noyau caudé x putamen
Mouvement volontaire ou automatiques
Neurones épineux moyen

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6
Q

Globus pallidus intern et externe

A

Interne : neurotransmetteur inhibiteur au thalamus

Externe : neurotransmetteur inhibiteur au noyau sous thalamique

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7
Q

Thalamus

A

Envoie dès neurotransmetteur excitateur au cortex cérébral

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8
Q

Noyau sous thalamique

A

Envoie des neurotransmetteurs excitateur au globus pallidus interne

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9
Q

Qui projet du gaba

A

Striatum et les globus pallidus

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10
Q

Qui projet du glutamate

A

Cortex , thalamus , noyau sous thalamique

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11
Q

Phase de la voie direct

A
Cortex +++
Striatum - - -
Globus pallidus interne - 
Thalamus +++
Cortex rétroaction positive
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12
Q

Phase de la voie indirect

A
Cortex +++
Striatum - - - 
Globus pallidus externe - 
Noyau sous thalamique +++
Globus pallidus interne - - - 
Thalamus + 
Cortex inhibitions des mouvements non désirée
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13
Q

Voie hyper direct

A
Cortex +++
Noyau sous thalamique +++ 
Globus pallidus interne - - -
Thalamus + 
Cortex inhibition des mouvements non désirée
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