Which name refers to the temporary organ that develops in the uterus during pregnancy?

The name that refers to the temporary organ that develops in the uterus during pregnancy is the "placenta." The placenta plays a crucial role in supporting the developing fetus. It acts as a barrier and a conduit between the mother and the fetus, allowing for the exchange of gases, nutrients, and waste products.

The placenta is formed from the trophoblast cells of the fertilized egg and the uterine lining. It is richly supplied with maternal blood vessels, facilitating the transfer of essential substances like oxygen and glucose to the fetus while removing carbon dioxide and other waste materials. Additionally, the placenta produces several hormones that are vital for maintaining pregnancy and supporting fetal development, such as human chorionic gonadotropin (hCG), progesterone, and estrogen.

In summary, the placenta is vital for the health and development of the fetus during pregnancy, ensuring the necessary physiological support for optimal growth.