In amniotes, the clitoris ( KLIT-ər-iss or klih-TOR-iss; pl.: clitorises or clitorides) is a female sex organ. In humans, it is the vulva's most erogenous area and generally the primary anatomical source of female sexual pleasure. The clitoris is a complex structure, and its size and sensitivity can vary. The visible portion, the glans, of the clitoris is typically roughly the size and shape of a pea and is estimated to have more than 10,000 nerve endings. Sometimes in common speech, clitoris or clit is used to solely reference the glans. Sexological, medical, and psychological debate has focused on the clitoris, and it has been subject to social constructionist analyses and studies. Such discussions range from anatomical accuracy, gender inequality, female genital mutilation, and orgasmic factors and their physiological explanation for the G-spot. The only known purpose of the human clitoris is to provide sexual pleasure. Knowledge of the clitoris is significantly affected by its cultural perceptions. Studies suggest that knowledge of its existence and anatomy is scant in comparison with that of other sexual organs (especially male sex organs) and that more education about it could help alleviate stigmas, such as the idea that the clitoris and vulva in general are visually unappealing or that female masturbation is taboo and disgraceful. The clitoris is homologous to the majority of the penis in males.
Etymology and terminology The Oxford English Dictionary states that the Neo-Latin word clītoris likely has its origin in the Ancient Greek κλειτορίς (kleitorís), which means "little hill", and perhaps derived from the verb κλείειν (kleíein), meaning "to shut" or "to sheathe". Clitoris is also related to the Greek word κλείς (kleís), "key", "indicating that the ancient anatomists considered it the key" to female sexuality. In addition, the Online Etymology Dictionary suggests other Greek candidates for this word's etymology include a noun meaning "latch" or "hook" or a verb meaning "to touch or titillate lasciviously", "to tickle". The Oxford English Dictionary also states that the colloquially shortened form clit, the first occurrence of which was noted in the United States, has been used in print since 1958: until then, the common abbreviation was clitty. Other slang terms for clitoris are bean, nub, and love button. The term clitoris is commonly used to refer to the glans alone. In recent anatomical works, the clitoris has also been referred to as the bulbo-clitoral organ.
Structure
Most of the clitoris is composed of internal parts. Regarding humans, it consists of the glans, the body (which is composed of two erectile structures known as the corpora cavernosa), the prepuce, and the root. The frenulum is beneath the glans. Research indicates that clitoral tissue extends into the vaginal anterior wall. Şenaylı et al. said that the histological evaluation of the clitoris, "especially of the corpora cavernosa, is incomplete because for many years the clitoris was considered a rudimentary and nonfunctional organ". They added that Baskin and colleagues examined the clitoris' masculinization after dissection and using imaging software after Masson's trichrome staining, put the serial dissected specimens together; this revealed that nerves surround the whole clitoral body. The clitoris, its bulbs, labia minora, and urethra involve two histologically distinct types of vascular tissue (tissue related to blood vessels), the first of which is trabeculated, erectile tissue innervated by the cavernous nerves. The trabeculated tissue has a spongy appearance; along with blood, it fills the large, dilated vascular spaces of the clitoris and the bulbs. Beneath the epithelium of the vascular areas is smooth muscle. As indicated by Yang et al.'s research, it may also be that the urethral lumen (the inner open space or cavity of the urethra), which is surrounded by a spongy tissue, has tissue that "is grossly distinct from the vascular tissue of the clitoris and bulbs, and on macroscopic observation, is paler than the dark tissue" of the clitoris and bulbs. The second type of vascular tissue is non-erectile, which may consist of blood vessels that are dispersed within a fibrous matrix and have only a minimal amount of smooth muscle.
Glans
Highly innervated, the clitoral glans (glans means "acorn" in Latin), also known as the "head" or "tip", exists at the anterior side of the clitoral body as a fibro-vascular cap and is usually the size and shape of a pea, although it is sometimes much larger or smaller. The glans is separated from the clitoral body by a ridge of tissue called the corona. The clitoral glans is estimated to have 8,000 and possibly 10,000 or more sensory nerve endings, making it the most sensitive erogenous zone. The glans also has numerous genital corpuscles. Research conflicts on whether the glans is composed of erectile or non-erectile tissue. Some sources describe the clitoral glans and labia minora as composed of non-erectile tissue; this is especially the case for the glans. They state that the clitoral glans and labia minora have blood vessels that are dispersed within a fibrous matrix and have only a minimal amount of smooth muscle, or that the clitoral glans is "a midline, densely neural, non-erectile structure". The clitoral glans is homologous to the male penile glans. Other descriptions of the glans assert that it is composed of erectile tissue and that erectile tissue is present within the labia minora. The glans may be noted as having glandular vascular spaces that are not as prominent as those in the clitoral body, with the spaces being separated more by smooth muscle than in the body and crura. Adipose tissue is absent in the labia minora, but the organ may be described as being made up of dense connective tissue, erectile tissue and elastic fibers.
Frenulum
The clitoral frenulum or frenum (frenulum clitoridis and crus glandis clitoridis in Latin; the former meaning "little bridle") is a medial band of tissue formed between the undersurface of the glans and the top ends of the labia minora. It is homologous to the penile frenulum in males. The frenulum's main function is to maintain the clitoris in its innate position.
Body
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