les cellules immunitaires Flashcards by Adaora ILOANUSI

Q

les différentes cellules immunitaires

A

-monocyte
-macrophage
-granulocyte
-mastocyte
-cellule dendritique
-lymphocyte B et T
-plasmocyte

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Q

forme monocyte

A

ronde

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Q

forme granulocyte

A

ronde

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Q

forme cellule dendritique

A

étoile

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Q

forme lymphocyte B et T

A

ronde

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Q

forme plasmocyte

A

ovale

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Q

noyau monocyte

A

1 en 1 lobe

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Q

noyau macrophage

A

1 arrondi

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Q

noyau granulocyte

A

1 plurilobé

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Q

noyau mastocyte

A

1

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Q

noyau cellule dendritique

A

1

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Q

noyau lymphocyte B et T

A

1 rond

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Q

noyau plasmocyte

A

1 excentré

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Q

taille monocyte

A

15-30 μm

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Q

taille macrophage

A

20-60 μm

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Q

taille granulocyte

A

10-15 μm

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Q

taille lymphocyte B et T

A

6-14 μm

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Q

taille plasmocyte

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A

8-20 μm

Q

localisation monocyte

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A

sang

Q

localisation macrophage

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A

tissus

Q

localisation granulocyte

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A

sang

Q

localisation mastocyte

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A

tissus

Q

localisation cellule dendritique

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A

tissus organes lymphoïdes

Q

localisation lymphocyte B et T

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A

tissus = organes lymphoïdes

localisation plasmocyte

tissus = organes lymphoïdes

fonction monocyte

circulant

fonction macrophage

phagocytose

fonction granulocyte

phagocytose

fonction mastocyte

histamine

fonction cellule dendritique

cellules présentatrices d'antigène aux lymphocyte T

fonction lymphocyte B et T

différenciation

fonction plasmocyte

production d'anticorps

origine macrophage

monocyte

origine plasmocyte

lymphocyte B

différenciation monocyte

macrophage

différenciation macrophage

phagocytose + présentatrices d'antigène ?

différenciation lymphocyte B et T

plasmocyte ?

taille cellule végétale

100 µm

taille cellule animale

20 µm

taille bactérie

2 µm

Exemple de médiateur emblématique

Histamine

Nature et Origine de l'Histamine

Amine stockée dans les granules des mastocytes

Rôle histamine

Molécule vasoactive