The T Cell
There are two major parts of the immune system which are in the thymus the T cell and the helper T cell. The T cell fights infection, disease and cancer cells. The helper T cell is only needed or active when the T cell needs assistance. The T cell and the helper T cell are in the thymus and the thymus is in the stem cell which is in the blood stream.
The blast cell will transform into a memory cell and the memory cell will send a faster message to the B cell. Some blast cells transform into plasma cells that will create antibodies. The antibodies will eat the germs that have reached the area. This is scientificaly known as fagatisosis.