Quiz sur le Système Nerveux
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Marilou Provost
Used 2+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel type de cellule gliale est responsable de la formation de la myéline dans le système nerveux central ?
Astrocytes
Microglie
Oligodendrocytes
Cellules de Schwann
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelles cellules gliales sont impliquées dans la réponse immunitaire du système nerveux central ?
Oligodendrocytes
Microglie
Astrocytes
Cellules de Schwann
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les canaux ioniques ligands-dépendants s'ouvrent en réponse à :
Un changement du potentiel de membrane
La liaison d'une molécule spécifique (un neurotransmetteur)
Une dépolarisation de la cellule
Une hyperpolarisation de la cellule
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est l'exemple d'un neurotransmetteur qui active des canaux ioniques ligands-dépendants ?
Glutamate
Sodium
Calcium
Magnésium
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la conséquence d'une dépolarisation de la membrane postsynaptique ?
Hyperpolarisation de la cellule
Excitation de la cellule
Inhibition de la cellule
Aucune de ces réponses
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le potentiel de repos correspond à un potentiel de membrane d'environ :
+30 mV
0 mV
-70 mV
-50 mV
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le potentiel de repos est principalement maintenu par :
L'activation des canaux sodium-voltage dépendants
La pompe sodium-potassium
La diffusion passive des ions
La présence de neurotransmetteurs
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