Immune System

2. Deficiency, breakdown or inability of certain parts of the immune system to function, thus making a person more susceptible to certain diseases.
4. Killer cells, cells that are part of the innate immune system that recognize virus-infected & cancerous body cells, and will attack and kill foreign invaders.
5. Disease, diseases caused when an organism’s own immune system attacks its own cells.
6. cells, a type of lymphocyte cell in the adaptive immune system that recognizes and responds to specific invading pathogens, they recognize intact antigens on the surface of pathogens using receptors bound to their cell surface.
7. cells, cells that last for decades in the lymph nodes and are ready to be activated if an antigen on a foreign pathogen reappears in the body.
9. System, network of vessels tissues and organs that helps circulate fluid throughout the body.
11. agents that cause disease, such as bacteria, viruses, fungi, or others
13. T Cells, lymphocytes responsible for assisting other white blood cells in responding to infection, processing antigens, and triggering antibody production.

1. Immunity, a branch of the immune system whose components attach to pathogens indiscriminately and does not change much from the time you are born.
3. a protein molecule in the blood serum or other body fluids that destroys or neutralizes bacteria, viruses, or other harmful toxins.
8. Immunity, activated defense after the innate response that ensures you will have better protection from a specific pathogen each time you encounter it, and develops over your lifetime.
10. any substance (on the cell surface or in the fluid) that can elicit a response to stimulate the immune system to produce antibodies
12. cells, cells that engulf foreign cells or molecules & debris from dead cells to help rid the body of foreign invaders.