February 24 2018 03:44:08
Воздействие яда змеи на человека
Многие недооценивают смертоносную силу змеиного яда. Ученые провели эксперимент, показав то, с какой скоростью яд гадюки влияет на кровь. Результаты эксперимента поражают.

Яды змей — сложная смесь органических и неорганических веществ, вырабатываемая железами некоторых видов змей. Состав и свойства яда различных змей неодинаковы.

Яд вырабатывается специальными железами, расположенными позади глаз. Эти железы представляют собой видоизменённые слюнные железы, открывающиеся наружу выводными протоками, которые сообщаются с помощью мешочка с одним либо несколькими каналами ядовитых зубов.



Классификация ядов змей:

Нейротоксический — обладают курареподобным действием, останавливают нейромышечную передачу, в результате чего наступает смерть от паралича.

Гемовазотоксический — вызывают сосудистый спазм, за ним — сосудистую проницаемость, а потом отёк тканей и внутренних органов.
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