Immune Module - The Perfect Fit
How B and T Cells Distinguish Among Germs And Your Own Cells
What different mechanisms are used to fight off germs when they come into contact with your body? Simple! The answer is white blood cells. These cells are made to fight off any foreign germ or any infected cell. Although while these cells help fight off these things, how can they tell them apart from your typical body cells?Different types of cells have different shapes. Those shapes are there for the B and T cells (white blood cells also called lymphocytes) to distinguish between your own body cells and germs entering your body. Both B and T cells have special receptors that target a special antigen. When an unknown cell comes around B and T cells, they identify if they're a germ by seeing if the shape fits into it's receptor. If the shape fits, it means it's a germ or infected cell and the white blood cell eliminates it.
Specifics of B and T Cells
B cells infect foreign molecules with a dissolvable protein in order to eliminate them
T cells help make other lymphocytes needed and they also detect and kill host cells