3 major functions of the immune system

Immune system – wikipedia, the free encyclopedia, The immune system is a system of biological structures and processes within an organism that protects against disease. to function properly, an immune system must.
Major histocompatibility complex – wikipedia, the free, The major histocompatibility complex (mhc) is a set of cell surface molecules encoded by a large gene family which controls a major part of the immune system in all.

Human Body Organ Systems Worksheet

Regulatory T Cells
Immune System