Communication Nerveuse Flashcards

Tissu nerveux

1
Q

Neurone

A

Ç hyperspecialise
÷ pas
Neurogenese
Limite

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2
Q

Ç gliales

A
Soutien
Nutrition
Protection
Défense immunitR 
Fabrique myéline
Neurogenese 
Comm
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3
Q

Synapse

A

Zone de contact

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4
Q

3grds types de neurone

A

Sensoriels
Interneurones
Motoneurones

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5
Q

Sensoriels

A

Recept sensoriel–> SNC

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6
Q

Interneurones

A

Sens–> moteur

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7
Q

Motoneurones

A

Snc–> org effecteurs

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8
Q

PR

A

Diff de concentration entre ext et int ç

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9
Q

Depolarisation

A

Ouverture et entrée na+

Excitation

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10
Q

Hyperpo

A

Fermeture NA

Ouverunture et sortie K+

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11
Q

Réfractaire

A

Canaux sodium et potassium inactivés et tjrs diff de concentration : pas de PA

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12
Q

2 types de synapse

A

Elec et chimique

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13
Q

Fonctionnement synapse

A
Arrivée PA
Ouverture Cano Ca2+
Exocytose 
NeuroT dans fente
Neurot sur récepteur = rep 
Recapture/ detruit
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14
Q

Neurone exitateur

A

Emet des neurot
Dépo
PPSE

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15
Q

Synapse inhibitrice

A

NeuroT–> sortir Cl-

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16
Q

Neurone inhibiteur

A

NeuroT–> hyperpo
PPSI
Possible nouveau PA

17
Q

Synapse excitatrice

A

: libere neuroT –> entrée ions Na+