The importance of vaginal opening time on female reproduction

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Vaginacanal in female mammals that receives the male reproductive cells, or spermand is part of the birth canal during the birth process. In humans, it also functions as an excretory canal for the products of menstruation. In humans the vagina is about 9 cm 3.

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They occur while she is growing in her mother's womb. Female reproductive organs include the vaginaovaries, uterus, and cervix. A baby starts to develop its reproductive organs between weeks 4 and 5 of pregnancy.

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Suarez, A. At coitus, human sperm are deposited into the anterior vagina, where, to avoid vaginal acid and immune responses, they quickly contact cervical mucus and enter the cervix. Cervical mucus filters out sperm with poor morphology and motility and as such only a minority of ejaculated sperm actually enter the cervix.

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In mammalsthe vagina is the elastic, muscular part of the female genital tract. In humans, it extends from the vulva to the cervix. The outer vaginal opening is normally partly covered by a membrane called the hymen. At the deep end, the cervix neck of the uterus bulges into the vagina.

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Collectively, these parts are called the vulva. Rich with nerves, the vulva can provide sexual pleasure when properly stimulated. The vagina is a muscular tube about three to four inches long that ends the birth canal.

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The female reproductive system functions to produce gametes and reproductive hormones, just like the male reproductive system; however, it also has the additional task of supporting the developing fetus and delivering it to the outside world. Unlike its male counterpart, the female reproductive system is located primarily inside the pelvic cavity Figure 1. Recall that the ovaries are the female gonads.

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These parts are internal; the vagina meets the external organs at the vulva, which includes the labia, clitoris, and urethra. The vagina is attached to the uterus through the cervix, while the uterus is attached to the ovaries via the fallopian tubes. At certain intervals, the ovaries release an ovum, which passes through the fallopian tube into the uterus. If, in this transit, it meets with sperm, the sperm penetrates and merges with the egg, fertilizing it.

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Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetzare involved.

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Applied anatomy and physiology for basic obstetric care is an entry to your studies in this Module and the next four Modules, and is essential preparation for your practical skills training. Obstetric care refers to healthcare for women during pregnancy, labour and delivery, and their immediate postnatal care. It requires a good understanding of the anatomy and physiology of the female reproductive system. Anatomy is the study of the structures of the human body, i.

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