Заҳарли газандалар. Я. Давлатов

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Название Заҳарли газандалар
Автор произведения Я. Давлатов
Жанр
Серия
Издательство
Год выпуска 0
isbn 978-9943-4113-6-4



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suvda yashovchi baliqlar juda xaflidir. Ularning tanasi ninalar bilan qoplangan, dengiz tubida yotgan baliqni oddiy bir tosh deb qabul qilish mumkin. Bunday baliqning zahridan chidab bo‘lmaydigan darajada og‘riq paydo bo‘ladi, u oqibat natijada asab kasalligini keltirib chiqaradi.

      Amerika olimlari Deyli va Uitson mazkur zaharning ta’sir etish mexanizmini kashf etdilar – aniqlanishicha, batroxotoksin organizmda ion olmashish jarayonini izdan chiqaradi, natijada asab tizimining vazifasi buziladi. Zahar ta’siri ostida asab hujayralari membranasining natriy ionini o‘tkazish darajasi kuchayadi, natijada asab impulisini o‘tish jarayoni bo‘g‘ib qo‘yiladi, bu esa yurak urishini to‘xtatib qo‘yadi.

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