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Биохимия зачатия

семенная жидкостьВсе перемещения яйцеклетки и сперматозоидов в маточной трубе обеспечиваются мышечными сокращениями, а также движением ресничек и током жидкости. Четкое взаимодействие трех этих механизмов происходит на уровне эндокринной и нервной регулирующих систем. Также механизму зачатия способствует гормон простагландин, который содержится в сперме, который в свою очередь может усилить эффект женского оргазма, вызывая сокращения матки.

Одновременно с процессом овуляцим в женском организме происходит множество других сопутствующих оплодотворению биохимических процессов. Слизь в шейке матки разжижается и ее канал становится проходимым для сперматозоидов, увеличивается кровоснабжение половых органов, у женщины повышается либидо и меняется настроение.

В процессе эякуляции при половом акта, в заднюю часть влагалища выбрасываются полмиллиарда сперматозоидов. Для оплодотворения яйцеклетки сперматозоидам нужно преодолеть дистанцию около 20 сантиметров, что занимает несколько часов.

Слабокислая среда влагалища не является благоприятной для сперматозоидов, хоть семенная жидкость и нейтрализует ее, но только частично. Семенная жидкость также частично подавляет губительное действие женской иммунной системы на сперматозоиды.

Комментарии (39)
  1. Лена К:

    Интересная статья, спасибо!

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