Quiz #5 Flashcards
Function of lymph nodes
Foreign material phagocytized digested and presented by macrophages to B and T cells
Function of spleen
Storage of blood and removal of RBCs, RBCs removed from the blood by phagocytosis where they are broken down and recycled, cleanses the blood
Lymphatic nodulle
B cell regions of a node, germinal centers where proliferation of B cells occurs following antigen stimulation
Germinal center
Region of B cells proliferation following antigen stimulation
Red pulp
Area between splenic follicles, filters blood, contains high density of RBCs
White pulp
Contains lymphocytes from the thymus and bone marrow and see an increase in these cells during an immune response
Macrophages
Antigen presenting cells, presents phagocytized foreign matter to T and B cells
Antigen presentation
Presented from foreign matter by macrophages to T and B cells
T lymphocytes
Mature in thymus
cells destroy bacteria, virus infected cells, tumors, transplanted tissue
found in lymph nodes, spleen, thymus
B lymphocytes
Mature in bone marrow
Become plasma cells when activated and make antibodies that travel in the blood plasma
Antigens
Large molecules, occur on the outer membrane of a cell
Type A having A antigen, Type B having B antigen
Antibodies
Attach to antigens on the surface of red blood cells in the blood plasma causing a reaction known as agglutination
Plasma cells
Come from activated B cells
provide antibody mediated immunity
make and secrete antibodies that travel in the blood plasma
Innate immunity
Person having a reaction to micro organisms and foreign substances without prior exposure
Acquired immunity
Exposure to specific antigens initiates an immune reaction
