Immune System Vocabulary Flashcards
Active immunity
antigen stimulus to the immune system that creates AMI or CMI
Agranulocytes
monocytes and lymphocytes_
Antibody mediated immunity (AMI)
B cell response involving antibody production
Antigen
a foreign substance such as a bacterium or virus
Basophils
circulating granulocyte that is similar to mast cells_
Bulk antigen
foreign material in the blood or lymph that is consumed by macrophages
Cell mediate immunity (CMI)
cellular response involving cytotoxic T cells_
Closed circulation
retention of RBCs within an endothelial lined vessel in the spleen
Cortex
description of the outer functional layer of organs, e.g. thymus and lymph node
Diapedesis
migration of lymphocytes across and endothelial barrier_
Eosinophils
granulocytes that modify allergic reactions and kill parasites_
Epithelial reticular cells
supportive and educating cells in the thymus_
Germinal center
site of B cell enlargement and division in AMI_
Granulocytes
neutrophils, eosinophils, and basophils_
High endothelial venule
site in lymph nodules of exit of lymphocytes from the blood
Immunoglobulins
antibody molecules_
Lymph node
a filter for the lymph_
Lymphocyte, B
immune cell that produces antibody upon stimulation_
Lymphocyte, T helper
immune cell that aids in both AMI and CMI_
Lymphocyte, T cytotoxic
the effector cell of CMI_
Marginal sinus/zone
a zone of antigen presentation in the spleen_
Medulla
description of the inner functional layer of organs, e.g. thymus or lymph node
Medullary cord
an extension of the cortical region of the lymph node_
Memory cell
a cell exposed to a specific antigen that circulates as a small lymphocytes
Monocytes
cells that can form macrophages, chondroclasts, or osteoclasts
Neutrophils
a phagocytic WBC that has a segmented nucleus_
Open circulation
region of the spleen where RBCs can enter the red pulp_
PALS
region of T cells in the white pulp of the spleen_
Passive immunity
transfer of AMI or CMI by transfusion_
Plasma cell
the main antibody producing cell in AMI_
Platelet
cell fragment of megakaryocytes that is involved in blood clotting_
Primary lymphoid organ
bone marrow or thymus_
Red pulp
area of blood filtration in the spleen_
Secondary lymphoid organ
spleen, lymph nodes, gut associated lymphoid tissue
Spleen
a filter for the blood_
White pulp
region of immune response within the spleen
