Immune System Players

Develop in bone marrow, mature in the thymus; 2 main types: helper cells & cytotoxic cells
Antigen presenting cells which can be found in the tissues.
Develop in the bone marrow and are responsible for immunity as Memory Cells
Phagocytic white blood cells which secrete cytokines and can activate Helper T cells
Most abundant type of circulating white blood cells
Phagocytic cells which reside in tisue and move amoebically through the tissues to eliminate foreign invaders through phagocytosis
Proteins produced by B cells which control the immune response in the extracellular fluids
Most common antibody, comprising 80% of the body's total. Found in blood and interstitial fluid
A series of interacting proteins that bursts infected cells and triggers local inflammatory responses.
Largely confined to the blood, this antibody comprises 5-10% of the body's immunoglobulin.
This antibody is found predominatly in the intestinal tract, the saliva, sweat, and tears