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In prepubertal girls, the skin of the vulva is thin and delicate, and its neutral pH makes it prone to irritation. [53] The production of the female sex hormone estradiol (an estrogen ) at puberty, causes the perineal skin to thicken by keratinising , and this reduces the risk of infection. [ 54 ]
Williams says kids begin pointing to and naming body parts between 1 and 2 years of age, but don’t ask questions about bodily functions until they're around 3 years old. Additionally, they need ...
A tadpole or polliwog (also spelled pollywog) is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails.
The behavior of an amphibian hatchling, commonly referred to as a tadpole, is controlled by a few thousand neurons. [4] 99% of a Xenopus hatchling's first day after hatching is spent hanging from a thread of mucus secreted from near its mouth will eventually form; if it becomes detached from this thread, it will swim back and become reattached, usually within ten seconds. [4]
The term vagina is from Latin vāgīna, meaning "sheath" or "scabbard". [1] The vagina may also be referred to as the birth canal in the context of pregnancy and childbirth. [2] [3] Although by its dictionary and anatomical definitions, the term vagina refers exclusively to the specific internal structure, it is colloquially used to refer to the vulva or to both the vagina and vulva.
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The vulva is of all of the external parts and tissues and includes the following: [3] Clitoris: an organ located at the top of the vulva. It consists of the body and its pea-shaped glans that is protected by the clitoral hood. The corpora cavernosa are tissues of the clitoris that aid in erection by filling with blood during sexual arousal.
The term intimate parts may be construed to mean only the external body parts that are visible when naked, rather than the body parts more commonly referred to. For example, when naked, a woman's pudendal cleft is predominantly visible rather than the vagina, and a man's scrotum is visible rather than the testes which are contained within.