...refers to the presence of both male and female elements in the genitals of the same person. The Western term originates from Hermaphroditus in Greek mythology. It is commonly called "futanari" and is also found in higher animals, mainly mammals. Gender is usually determined by the combination of sex chromosomes that occurs at the time of conception. Men have an XY sex chromosome composition, while women have an XX sex chromosome composition. In a normal fetus, the gonadal differentiation occurs, that is, the testes develop in boys and the ovaries develop in girls. The testes secrete male hormones that promote the development of the Wolffian ducts, which are the basis of the male genitalia, and inhibit the development of the Müllerian ducts, which are the basis of the female genitalia. *Some of the terminology referenced in "Kodolány J." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…同一人の性器に男女両性の要素が存在するものをいう。欧米語はギリシア神話のヘルマフロディトスに発する。俗には〈ふたなり〉とも呼ばれ,高等動物,主として哺乳類にもみられる。男女の性は,普通は受胎と同時に起こる性染色体の組合せによって決定される。男性はXY,女性はXXの性染色体構成をもち,正常な胎児では性腺分化,すなわち男児では睾丸,女児では卵巣が発達する。睾丸からは,男性器のもととなるウォルフ管の発育を促進し,女性器のもととなるミュラー管の発育を抑制する男性ホルモンが分泌される。… ※「Kodolány J.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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