intromittent organ

Japanese: intromittent organ(英語表記)intromittentorgan
intromittent organ

… [Hideji Harada]
[Mating organs of vertebrates]
In vertebrates, many animals that have internal fertilization through mating have a copulatory organ as an external reproductive organ. The male's copulatory organ is a specialized protrusion that inserts into the female's genital opening and injects semen, so it is generally called the intromittent organ. In females, the cloaca, which is the common exit for the digestive tract, urethra, and oviduct, or the vagina, which is the birth canal through which young are born, also serves as a copulatory organ, and often does not show a specialized structure.

*Some of the terminology that mentions "intromittent organ" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…【原田 英司】
[脊椎動物の交尾器官]
 脊椎動物では,交尾によって体内受精をする動物の多くが外部生殖器官として交尾器官を備えている。雄の交尾器官は,雌の生殖孔へ挿入し精液を注入する突起として特殊化しているので,一般に挿入器官intromittent organともいう。雌では消化管・尿道・卵管の共同の出口である総排出腔,または子を生みだす産道である腟が交尾器官を兼ねており,特殊な構造を示さないことが多い。…

※「intromittent organ」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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