nothing. Absolutely every part of your body is involved in the immune system. Having said this, not every part CONTRIBUTES to you immune system. I don't think that the muscular system really helps, but every other system does.
immune system
Respiratory
The immune system.
The Immune System. Sorry to disappoint.
red blood cells
the emmu system is protect our body from the diseas
It is called the Immune System. A bit of extra info: The Immune System is the cause of allergies. It goes too far when trying to protect the body from something. ENDOCRINE SYSTEM
The thymus is primarily involved in the immune system, specifically in the maturation of T cells. It is not directly involved in the digestive system, but it does contribute to the overall function of the lymphatic system by supporting T cell development and immune responses.
its killer T cells
The immune system is the organ system involved in defense. It works to protect the body against pathogens, infections, and foreign substances by recognizing and responding to them.
axons neurons , cells help protect the bodys defense system against infection ..auto-immune defiency ...also oxygen
Cardiovascular