Cervix The top of the fascia on the anterior and posterior vaginal wall connect with cervix at the top of the vagina The cervix is the very firm lower portion of the uterus and acts to stabilize the fascia of the female pelvis• The top of the fascia on the anterior and posterior vaginal wall connect with cervix at the top of the vagina. • The cervix is the very firm lower portion of the uterus and acts to stabilize the fascia of the female pelvis