The Body Of The Uterus, also known as the Corpus Uteri, is the Major portion of the uterus and plays a crucial role in Reproductive Functions, including housing and Nourishing a fertilized egg until it Develops into a fetus. It is lined with the endometrium, which Thickens during the menstrual cycle in Preparation for potential implantation and Sheds during menstruation if fertilization does not occur.