Seminal fluid, otherwise known as semen, is an organic material that is produced by the body more specifically the sexual organs like the gonads and testes. It contains spermatozoa which are the natural cells known as sperm. Simply put the body produces semen, which contains sperm. The seminal fluid is acts a protective barrier for the sperm cells and helps nutrition for the sperm cells as they navigate their way through the female reproductive system. The female reproductive system is acidic whereas the composition of semen is very basic and prefers an alkaline environment.
T cells or T lymphocytes are a type of lymphocyte (in turn, a type of white blood cell) that plays a central role in cell-mediated immunity. They can be distinguished from other lymphocytes, such as B cells and natural killer cells (NK cells), by the presence of a T-cell receptor (TCR) on the cell surface.
Once activated, helper T cells start to divide and to produce proteins that activate B and T cells as well as other immune cells. The killer T cell is specialized in attacking cells of the body infected by viruses and sometimes also by bacteria. It can also attack cancer cells.The killer T cell has receptors that are used to search each cell that it meets. cells can also produce memory cells with an even longer life span than B memory cells. The second time an intruder tries to invade the body, B and T memory cells help the immune system to activate much faster. The invaders are wiped out before the infected human feels any symptoms.