<P> The vagina is a fibromuscular (made up of fibrous and muscular tissue) canal leading from the outside of the body to the cervix of the uterus or womb . It is also referred to as the birth canal in the context of pregnancy . The vagina accommodates the male penis during sexual intercourse . Semen containing spermatozoa is ejaculated from the male at orgasm, into the vagina potentially enabling fertilization of the egg cell (ovum) to take place . </P> <P> The cervix is the neck of the uterus, the lower, narrow portion where it joins with the upper part of the vagina . It is cylindrical or conical in shape and protrudes through the upper anterior vaginal wall . Approximately half its length is visible, the remainder lies above the vagina beyond view . The vagina has a thick layer outside and it is the opening where the fetus emerges during delivery . </P> <P> The uterus or womb is the major female reproductive organ . The uterus provides mechanical protection, nutritional support, and waste removal for the developing embryo (weeks 1 to 8) and fetus (from week 9 until the delivery). In addition, contractions in the muscular wall of the uterus are important in pushing out the fetus at the time of birth . </P> <P> The uterus contains three suspensory ligaments that help stabilize the position of the uterus and limits its range of movement . The uterosacral ligaments keep the body from moving inferiorly and anteriorly . The round ligaments restrict posterior movement of the uterus . The cardinal ligaments also prevent the inferior movement of the uterus . </P>

Which of the following is not a part of the female reproductive system in human