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.
The first hormone that is involved in the maturation of the egg and sperm is the gonadotropin - releasing hormone(GnHR). This hormone is secreted by the hypothalamus, and it stimulates release of two gonadotropin hormones released by the pituatury gland. The leutenizing hormone (LH) and follicle stimulating hormone (FSH). And these two pituatury gland gonadotropins are the key hormones for the maturation of egg and sperm.