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.
A answered. Lymphocytes are different from other types of white blood cells because they recognize and remember invading bacteria and viruses. T lymphocytes, or T cells, are responsible for cell-mediated immunity. T cells come in many types with specific functions, including: Helper T cells direct the immune system. In a rather lengthy process, helper T cells release cytokines. Cytokines stimulate B cells to form plasma cells. Plasma cells form antibodies, which stimulate the production of two other types of T cells: cytotoxic T cells and suppressor T cells. Helper T cells are the cells attacked by the AIDS virus. You can imagine the devastating effect of destroying the T cells that direct the immune system. Cytotoxic T cells release certain chemicals that break open to kill invading organisms.