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Unformatted text preview: a luteal phase (presence of the corpus luteum ). These cyclic phases are interrupted only by pregnancy and continue until menopause, when reproductive capability ends. The ovarian cycle lasts usually 28 days. During the first phase, the oocyte matures within a follicle. At midpoint of the cycle, the oocyte is released from the ovary in a process known as ovulation . Following ovulation the follicle forms a corpus luteum which synthesizes and prepares hormones to prepare the uterus for pregnancy. The secondary oocyte passes into the oviduct (fallopian tube or uterine tube). The oviduct is connected to the uterus. The uterus has an inner layer, the endometrium , in which a fertilized egg implants. At the lower end of the uterus the cervix connects the uterus to the vagina . The vagina receives the penis during intercourse and serves as the birth canal....
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