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.
T3 & T4. The thyroid gland is responsible for regulating body metabolism through its production of thyroxine (T4) and triiodothyronine (T3) tyrosine-based hormones. You may have heard about the T3 and T4 hormones before, but may not realize its importance in your body. The T3 and T4 hormones are produced by the thyroid gland, and are secreted into the blood stream to regulate the body's metabolism. Functions of T3 and T4. These hormones are essential to the growth of the body. The T3 and T4 hormones act on almost every cell, increasing the metabolic rate, affecting protein synthesis and regulating bone growth.