The immune system is made up of special organs, cells and chemicals that fight infection (microbes). The main parts of the immune system are: white blood cells, antibodies, the complement system, the lymphatic system, the spleen, the thymus, and the bone marrow.
What are the bodys three defense systems?
The human body has three primary lines of defense to fight against foreign invaders, including viruses, bacteria, and fungi. The immune systems three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.
What is the defense system of the body?
The immune system protects your childs body from outside invaders, such as bacteria, viruses, fungi, and toxins (chemicals produced by microbes). It is made up of different organs, cells, and proteins that work together. There are two main parts of the immune system: The innate immune system, which you are born with.