The uterus or womb is the major female reproductive organ. Symptoms of yeast infections include itching, burning, irritation, and a white cottage-cheese-like discharge from the vagina. Right whales have the largest testicles in the animal kingdom, reaching a combined mass of 1,000 kg, which corresponds to 2% of their total weight. The labia majora are two marked folds of skin that extend from the mons pubis downward and backward to merge with the skin of the perineum. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. The uterosacral ligaments keep the body from moving inferiorly and anteriorly. It differs from vaginitis in that there is no inflammation. The female internal reproductive organs are the vagina, uterus, Fallopian tubes, and ovaries.
There it travels toward the uterus, pushed along by movements of cilia on the inner lining of the tubes.
Bacterial vaginosis is polymicrobial, consisting of many bacteria species. [2], Vaginitis is inflammation of the vagina and largely caused by an infection.
The zygote will then divide over enough generations of cells to form a blastocyst, which implants itself in the wall of the uterus. The uterus is a pear-shaped muscular organ. The vagina is directed obliquely upward and backward. The upper limit of the hairy region is horizontal across the lower abdomen.
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They have a cavity that their genitals remain in during resting and swimming so there isn’t a great deal that is known about them in great deal. A single sperm and egg fertilize to form a diploid zygote. The primary reproductive organs of either system are called gonads (ovaries and testes) and these are responsible for gamete (sperm and egg cell) and hormone production.
They can all involve a range of adverse health consequences such as bleeding, irreparable tissue damage, and sepsis which can sometimes prove fatal. This asymmetrical cytokinesis results in one large egg cell (oocyte) and smaller cells called polar bodies.
The prostate gland, seminal vesicles, and bulbourethral glands, reproductive system - Children's Encyclopedia (Ages 8-11), reproductive system - Student Encyclopedia (Ages 11 and up). Photo courtesy of Wikipedia Commons. Yeast infections are usually caused by an imbalance of the pH in the vagina, which is usually acidic.
The uterus or womb accommodates the embryo which develops into the foetus. The mucous membrane has a longitudinal ridge in the midline of both the anterior and posterior walls.
This process occurs continuously and takes place within the male testes. Print. Disorders of the female reproductive system include endometriosis—a painful condition in which endometrial tissue develops outside of the uterus—ovarian cysts, uterine polyps, and uterine prolapse. The growth and activity of these parts are regulated by hormones. The male and female each produce haploid gametes. When the foetus has developed enough to survive outside the uterus, the cervix dilates and contractions of the uterus propel the newborn through the birth canal (the vagina). There are, therefore, recesses in the vagina at the back, on each side, and at the front of the cervix. No glands are present in the vaginal lining, and mucus present has been secreted by the glands in the cervical canal of the uterus. Gametes are produced by a two-part cell division process called meiosis. The labia majora contain fat and loose connective tissue and sweat glands.
Once fertilization is initiated, the secondary oocyte completes meiosis II and becomes an ovum. A fertilized ovum is called a zygote.
The clitoris is a small erectile structure composed of two corpora cavernosa separated by a partition. It is the most common gynaecological condition presented.
The external opening of the urethra is some 2.5 cm (about 1 inch) behind the clitoris and immediately in front of the vaginal opening. After ovulation, the egg cell is captured by the Fallopian tube, after traveling down the Fallopian tube to the uterus, occasionally being fertilized on its way by an incoming sperm. Chromosome characteristics determine the genetic sex of a fetus at conception. The lower part of the posterior vaginal wall is separated from the anal canal by a mass of tissue known as the perineal body.
When a male and female sex cell unite, an offspring grows and develops. [5], This article is about the reproductive system in human females. The reproductive tract can be used for various transluminal procedures such as fertiloscopy, intrauterine insemination, and transluminal sterilization.
The haploid secondary oocyte will only complete the second meiotic stage if it encounters a sperm cell. The two labia minora are joined at the back across the midline by a fold that becomes stretched at childbirth.
They lie inside the labia majora and are some 4 cm (about 1.5 inches) in length.
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