Teen with both sex organs

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. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. When sperm fertilizes meets an egg, this fertilized egg is called a zygote pronounced: The organs goes through a process of becoming an college girls playing nude games and developing into a fetus.

The male with system and the female reproductive system both are needed for reproduction. Humans, like other organisms, pass some characteristics of themselves to the next generation.

Differences in sex development - NHS

We do this through our genes sex, the special carriers of human traits. The genes that parents pass along are what make their children teen to others in their family, but also what make each child unique.

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These genes come from the male's sperm and the female's egg. The external part of the female reproductive organs is called the vulvawhich means covering. Located between the legs, the vulva covers the opening to the vagina and other reproductive organs inside the body.

The fleshy area located just above the top of the vaginal opening is called the mons pubis. Sex pairs of skin flaps called the labia which means lips surround the vaginal opening.

The clitorisa small sensory organ, is located toward the front of the vulva where the folds of the labia join. Between the labia are openings to the urethra the canal that carries pee from the bladder to the outside of the body and vagina.

When girls become sexually mature, the outer labia and the mons pubis are covered by pubic hair. A female's internal reproductive organs are the vagina, uterus, fallopian tubes, and ovaries. The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus.

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Because it has muscular walls, the vagina can expand and contract. This ability to become wider or narrower allows the vagina to accommodate something as slim as a tampon and as wide as a baby. The vagina's muscular organs are lined with mucous membranes, which keep it protected and moist. A teen thin piece of skin-like tissue with the hymen partly covers the opening of the vagina. Hymens are often different from female to organs.

Most women find their hymens have stretched or torn after their first sexual experience, and the hymen may bleed a little both usually causes little, if any, pain. Some women who have had sex don't have much of a change in their hymens, though. And some women's hymens have already stretched even before they have sex.

The vagina connects with the uterusor womb, at the cervix which means neck. The cervix has strong, thick walls. The opening of the cervix is very small no wider than a strawwhich is why a tampon can never get lost inside a girl's body. During childbirth, the cervix can expand to allow both baby to pass. The uterus is shaped like an upside-down pear, with a thick lining and muscular walls — in fact, the uterus contains some of the strongest muscles in the female body. These muscles are able to expand and contract to accommodate a growing fetus and then help push the baby out during labor.

When a woman isn't pregnant, the uterus is only about 3 inches 7.

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At the upper corners of the uterus, the fallopian tubes connect the uterus to the ovaries. The ovaries are two oval-shaped organs that lie to the upper right and left of the uterus.

They produce, store, and release eggs into the fallopian tubes in the process called ovulation pronounced: There are two fallopian pronounced: Within each tube is a tiny passageway no wider than a sewing needle. At the other end of each both hot girl tight shorts ass tits is a fringed area that looks like a funnel.

This fringed area wraps around the ovary but doesn't completely attach to it. When an egg pops out of sex ovary, it enters the fallopian tube. Once the egg is in the fallopian tube, tiny hairs in the tube's lining help push it down the narrow passageway toward the uterus.

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The ovaries pronounced: OH-vuh-reez are also part of the endocrine system because they produce female sex hormones such as estrogen pronounced: ESS-truh-jun teen progesterone pronounced: Most people think of the gonads as the male testicles.

But both sexes have gonads: In females the gonads are the ovaries, which make female gametes eggs. The male gonads make male gametes sperm. When a baby girl is born, her ovaries contain hundreds of thousands of eggs, which remain inactive until with begins.

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At puberty, the pituitary gland in the central part of the brain starts making hormones that stimulate the ovaries to make female sex hormones, including estrogen. The secretion of these hormones causes a girl to develop into a sexually mature woman.