T cells attach to foreign, antigen bearing cells and interact directly (cell to cell contact)

Produce and secrete large globular proteins called antibodies

Globular proteins produced and secreted by plasma cells

Body fluids carry antibodies, which then react in various ways to destroy specific antigens or antigen bearing particles

Identical cells originating from division of a single cell

Accessory cell; Processed fragments of antigen attacked to the surface of another kind of cell

A group of proteins in plasma and other body fluids

The actions of b and t cells when they become activated after first encounter with antigens for which they are specialized to react

Response by memory b cells and memory t cells that encounter the same antigens

Produces another type of active immunity; Consists of bacteria or viruses that have been killed or weakened so that they cannot cause a serious infection or a toxoid

Antigens that trigger allergic responses

The danger the immune system poses to transplanted tissue that the recipient’s cells may recognize as foreign and attempt to destroy the transplanted tissue

The attack and damage tissues done to tissues and organs