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biology > Immune System > Flashcards

Immune System Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

White blood cells

A

Leukocytes

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2
Q

WBC are produced from

A

hematopoietic stem cells

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3
Q

Triggered by ___

A

interleukins + colony - stimulation factors in response to infection

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4
Q

Granulocytes

A

contain cytoplasmic granules

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5
Q

Neutrophils

A

phagocyte that defense against bacterial infection

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6
Q

Polymorphonuclear

A

multi-lobed nucleus connected w/ thin strands of chromatin (3-5 segments normal)

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7
Q

Neutrophils make up

A

54-62% of circulating WBC

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8
Q

Eosinophils

A

defend against parasitic worms

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9
Q

Basophils

A

defend against ectoparasites

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10
Q

Histamines are released for ___

A

inflammation

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11
Q

Hepain is released to ___

A

inhibit blood clotting

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12
Q

Agranulocytes

A

WBC do not contain cytoplasmic granules

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13
Q

Monocytes

A

change into macrophages to destroy bacteria by phagocytosis

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14
Q

Largest WBC

A

monocytes

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15
Q

Lymphocytes

A

main WBC found in lymph (25-35% of circulating WBC)

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16
Q

Lymphocytes are ___

A

Natural Killer (NK) cells

17
Q

NK cells do __?

A

Induce apoptosis

Kill infected or cancerous cells

18
Q

T lymphocytes

A

cellular immune response, direct cell-to-cell action

19
Q

Antigen

A

surface shape recognized by immune system

20
Q

Helper T cell

A

activates B cells for antibody production, release chemical to stimulate WBC production

21
Q

Cytotoxic T cell

A

assassin cell - destroy infected cells with particular antigen

22
Q

Memory T cell

A

long lived cells that patrol for future exposure to that antigen

23
Q

B lymphocytes

A

humoral immune response, circulating protection in the blood

24
Q

Plasma cells

A

secret antibodies (immunoglobulins)

25
Q

Memory B cells

A

long-lived B cells that patrol for future exposure to antigen

26
Q

platelets

A

thrombocytes

27
Q

Megakaryocytic cell

A

breaks apart into smaller pieces called platelets

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