Does baby brain really exist? Answers from Myra Wick, M.D., Ph.D. There isn't enough information to support the existence of baby brain or pregnancy brain â terms used to describe the idea that pregnancy or early motherhood can harm a woman's memory and ability to think.
What two sites are involved in the production and maturation of T lymphocytes? What hormone is secreted by the thymus and stimulates the maturation of lymphocytes into T cells? Thymosin (THIGH-moh-sin) is secreted by the thymus and effects the  maturation of T-cells.
Most of the preprocessing of T-Lymphocytes occurs before birth and a few months after birth. By Wayne L. Sodano, D.C., D.A.B.C.I., & Ron Grisanti, D.C., D.A.B.C.O., M.S. T-Lymphocytes are categorized as T-Lymphocyte helper cells and T-Lymphocyte killer cells (aka Cytotoxic T-cells). The T-helper cell is the main controller of the whole immune system.