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.
referred to as the master gland of the immune system. In the thymus, lymphoid cells undergo a process of maturation and selection prior to being released into the circulation of the immune system. This process allows T cells to develop self-tolerance (distinguishing self from non-self). While developing in the thymus gland, any T cell that reacts