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蛔虫是一种危害人体健康的寄生虫,须服用药物来驱除。那么,为什么“秋后驱虫”效果最佳呢?让我们先来看看蛔虫是怎样进入人体的。当人们吃了不清洁、不卫生的带有蛔虫卵的食物后,虫卵先是在小肠内孵化为幼虫,然后再钻入肠壁,随血液进入肝脏,再通过肝静脉进入心脏,最后到达肺内,在肺泡内暂时寄生。待生长发育到具有一定活动能力时,这些“小家伙”又悠哉悠哉,顺着人体的气管、食管、胃,第二次返回到小肠内,这时的蛔虫才是名副其实的“肠道蛔虫”。
Roundworm is a parasite that endangers human health and must be taken to expel drugs. So, why the “autumn insect repellent” the best effect? Let us first look at how roundworms enter the body. When people eat unclean, unhygienic Ascaris eggs, the eggs first hatch in the small intestine as larvae, and then drill into the intestinal wall, with the blood into the liver, and then through the hepatic vein into the heart, and finally reach the lungs Within the alveolar temporary parasitic. To be growth and development to have a certain activity ability, these “little guy” and leisurely carefree, along the body’s trachea, esophagus, stomach, the second return to the small intestine, when the roundworm is a veritable “intestinal roundworm” .