Immune Systems Terms and Concepts

1. Natural Killers - involves proteins call compliments

2. Process Lysis

3. Humoral immunity (memory cells, plasma cells) Antibody-mediated immune response

4. Primary Response - pathogen into the bloodstream, two defenses humoral and cell mediated

4.1. Cell Mediated - if a macrophage, a white blood cell whose job it is to protect the body from infection, comes across with a pathogen by noting its foreign protein coat, then it will begin to destroy it. T-helper cell

4.1.1. Second Response - neither the killer T-cells nor the B-cells just die off after they kill the pathogen. They leave behind the memory cells with stay behind to watch for the pathogen.

4.1.1.1. Memory cells- actively acquired specific immunity possesses memory antigen.

5. Reaction Antigen

5.1. Antigen Binding

5.1.1. Antigen presentation stimulate T cells to become either cytotoxic or helper cells