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

A

8-20 μm

Q

localisation monocyte

A

sang

Q

localisation macrophage

A

tissus

Q

localisation granulocyte

A

sang

Q

localisation mastocyte

A

tissus

Q

localisation cellule dendritique

A

tissus organes lymphoïdes

Q

localisation lymphocyte B et T

A

tissus = organes lymphoïdes

Q

localisation plasmocyte

A

tissus = organes lymphoïdes

Q

fonction monocyte

A

circulant

Q

fonction macrophage

A

phagocytose

Q

fonction granulocyte

A

phagocytose

Q

fonction mastocyte

A

histamine

Q

fonction cellule dendritique

A

cellules présentatrices d’antigène aux lymphocyte T

Q

fonction lymphocyte B et T

A

différenciation

Q

fonction plasmocyte

A

production d’anticorps

Q

origine macrophage

A

monocyte

Q

origine plasmocyte

A

lymphocyte B

Q

différenciation monocyte

A

macrophage

Q

différenciation macrophage

A

phagocytose + présentatrices d’antigène ?

Q

différenciation lymphocyte B et T

A

plasmocyte ?

Q

taille cellule végétale

A

100 µm

Q

taille cellule animale

A

20 µm

Q

taille bactérie

A

2 µm

Q

Exemple de médiateur emblématique

A

Histamine

Q

Nature et Origine de l’Histamine

A

Amine stockée dans les granules des mastocytes

Q

Rôle histamine

A

Molécule vasoactive