Immune System Vocabulary

Question 1

Active immunity

Answer 1

antigen stimulus to the immune system that creates AMI or CMI

Question 2

Agranulocytes

Answer 2

monocytes and lymphocytes_

Question 3

Antibody mediated immunity (AMI)

Answer 3

B cell response involving antibody production

Question 4

Antigen

Answer 4

a foreign substance such as a bacterium or virus

Question 5

Basophils

Answer 5

circulating granulocyte that is similar to mast cells_

Question 6

Bulk antigen

Answer 6

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

Question 7

Cell mediate immunity (CMI)

Answer 7

cellular response involving cytotoxic T cells_

Question 8

Closed circulation

Answer 8

retention of RBCs within an endothelial lined vessel in the spleen

Question 9

Cortex

Answer 9

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

Question 10

Diapedesis

Answer 10

migration of lymphocytes across and endothelial barrier_

Question 11

Eosinophils

Answer 11

granulocytes that modify allergic reactions and kill parasites_

Question 12

Epithelial reticular cells

Answer 12

supportive and educating cells in the thymus_

Question 13

Germinal center

Answer 13

site of B cell enlargement and division in AMI_

Question 14

Granulocytes

Answer 14

neutrophils, eosinophils, and basophils_

Question 15

High endothelial venule

Answer 15

site in lymph nodules of exit of lymphocytes from the blood

Question 16

Immunoglobulins

Answer 16

antibody molecules_

Question 17

Lymph node

Answer 17

a filter for the lymph_

Question 18

Lymphocyte, B

Answer 18

immune cell that produces antibody upon stimulation_

Question 19

Lymphocyte, T helper

Answer 19

immune cell that aids in both AMI and CMI_

Question 20

Lymphocyte, T cytotoxic

Answer 20

the effector cell of CMI_

Question 21

Marginal sinus/zone

Answer 21

a zone of antigen presentation in the spleen_

Question 22

Medulla

Answer 22

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

Question 23

Medullary cord

Answer 23

an extension of the cortical region of the lymph node_

Question 24

Memory cell

Answer 24

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

Question 25

Monocytes

Answer 25

cells that can form macrophages, chondroclasts, or osteoclasts

Question 26

Neutrophils

Answer 26

a phagocytic WBC that has a segmented nucleus\_

Question 27

Open circulation

Answer 27

region of the spleen where RBCs can enter the red pulp\_

Question 28

PALS

Answer 28

region of T cells in the white pulp of the spleen\_

Question 29

Passive immunity

Answer 29

transfer of AMI or CMI by transfusion\_

Question 30

Plasma cell

Answer 30

the main antibody producing cell in AMI\_

Question 31

Platelet

Answer 31

cell fragment of megakaryocytes that is involved in blood clotting\_

Question 32

Primary lymphoid organ

Answer 32

bone marrow or thymus\_

Question 33

Red pulp

Answer 33

area of blood filtration in the spleen\_

Question 34

Secondary lymphoid organ

Answer 34

spleen, lymph nodes, gut associated lymphoid tissue

Question 35

Spleen

Answer 35

a filter for the blood\_

Question 36

White pulp

Answer 36

region of immune response within the spleen