TCELL
T cell
T cells or T lymphocytes are a type of lymphocyte that play a central role in cell-mediated immunity. They can be distinguished from other lymphocytes, such as B cells and natural killer cells, by the presence of a T-cell receptor on the cell surface. They are called T cells because they mature in the thymus. There are several subsets of T cells, each with a distinct function.The above text is a snippet from Wikipedia: T cell
and as such is available under the Creative Commons Attribution/Share-Alike License.