Immune System Vocabulary Flashcards

1
Q

Active immunity

A

antigen stimulus to the immune system that creates AMI or CMI

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2
Q

Agranulocytes

A

monocytes and lymphocytes_

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3
Q

Antibody mediated immunity (AMI)

A

B cell response involving antibody production

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4
Q

Antigen

A

a foreign substance such as a bacterium or virus

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5
Q

Basophils

A

circulating granulocyte that is similar to mast cells_

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6
Q

Bulk antigen

A

foreign material in the blood or lymph that is consumed by macrophages

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7
Q

Cell mediate immunity (CMI)

A

cellular response involving cytotoxic T cells_

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8
Q

Closed circulation

A

retention of RBCs within an endothelial lined vessel in the spleen

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9
Q

Cortex

A

description of the outer functional layer of organs, e.g. thymus and lymph node

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10
Q

Diapedesis

A

migration of lymphocytes across and endothelial barrier_

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11
Q

Eosinophils

A

granulocytes that modify allergic reactions and kill parasites_

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12
Q

Epithelial reticular cells

A

supportive and educating cells in the thymus_

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13
Q

Germinal center

A

site of B cell enlargement and division in AMI_

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14
Q

Granulocytes

A

neutrophils, eosinophils, and basophils_

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15
Q

High endothelial venule

A

site in lymph nodules of exit of lymphocytes from the blood

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16
Q

Immunoglobulins

A

antibody molecules_

17
Q

Lymph node

A

a filter for the lymph_

18
Q

Lymphocyte, B

A

immune cell that produces antibody upon stimulation_

19
Q

Lymphocyte, T helper

A

immune cell that aids in both AMI and CMI_

20
Q

Lymphocyte, T cytotoxic

A

the effector cell of CMI_

21
Q

Marginal sinus/zone

A

a zone of antigen presentation in the spleen_

22
Q

Medulla

A

description of the inner functional layer of organs, e.g. thymus or lymph node

23
Q

Medullary cord

A

an extension of the cortical region of the lymph node_

24
Q

Memory cell

A

a cell exposed to a specific antigen that circulates as a small lymphocytes

25
Q

Monocytes

A

cells that can form macrophages, chondroclasts, or osteoclasts

26
Q

Neutrophils

A

a phagocytic WBC that has a segmented nucleus_

27
Q

Open circulation

A

region of the spleen where RBCs can enter the red pulp_

28
Q

PALS

A

region of T cells in the white pulp of the spleen_

29
Q

Passive immunity

A

transfer of AMI or CMI by transfusion_

30
Q

Plasma cell

A

the main antibody producing cell in AMI_

31
Q

Platelet

A

cell fragment of megakaryocytes that is involved in blood clotting_

32
Q

Primary lymphoid organ

A

bone marrow or thymus_

33
Q

Red pulp

A

area of blood filtration in the spleen_

34
Q

Secondary lymphoid organ

A

spleen, lymph nodes, gut associated lymphoid tissue

35
Q

Spleen

A

a filter for the blood_

36
Q

White pulp

A

region of immune response within the spleen