7.2 Le sang Flashcards

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1
Q

Composantes du sang

A

Plasma et éléments figurés

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2
Q

Plasma

A

Eau, grosses protéines et autre solutés (ions, vitamines, etc.)

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3
Q

Pourcentage de plasma dans le sang

A

55%

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4
Q

Éléments figurés

A

Hématies, leucocytes et les plaquettes

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5
Q

Hématies

A

Globules rouges: ni de noyaux, ni d’organites et leur surface est recouverte de protéines particulières (agglutinines et leur anticorps correspondants)

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6
Q

Leucocytes

A

Globules blancs divisés en deux catégories: les granulocytes et les agranulocytes

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7
Q

Types de granulocytes

A

Neutrophile, basophile et éosinophile

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8
Q

Neutrophile

A

Phagocytaires, premiers sur le site d’infection

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9
Q

Éosinophile

A

Agissent contre certains parasites

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10
Q

Basophiles

A

Impliqués dans les réactions inflammatoires, ainsi que les réactions allergiques

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11
Q

Types d’agranulocytes

A

Monocytes et lymphocytes

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12
Q

Monocytes

A

Phagocytaires, prennent le nom de macrophage lorsqu’ils quittent la circulation sanguine (système lymphatique)

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13
Q

Lymphocytes

A

Lymphocytes B et T, qui reconnaissent les antigènes et sont responsable de la réaction immunitaire

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