The uterus(G) (womb) is the pear shaped organ in the pelvis(G), at the top of the vagina(G), in which a baby grows. The lower part of the uterus is called the cervix(G). A layer of tissue called the endometrium(G) lines the womb, and is designed to accept the implantation of a fertilized egg for the purposes of pregnancy. it is the endometrium which is shed every month in the form of a menstrual period, whenever a pregnancy does not occur. It is then replaced ready for another potential opportunity for pregnancy.
