MeHg can easily pass through the placental barrier, accumulate in the fetus and change the behavior and perceptibility of the second generation related to the function of central nervous system.
它极易通过胎盘屏障进入胎儿体内,影响子代的生长发育,改变子代与中枢神经系统功能有关的行为和认知能力。
Placental barrier
英语例句库
原声例句
Scishow 精选系列
There's a membrane called the placental barrier that's supposed to stop really terrible things like mercury from getting through to the fetus.
有一种叫做胎盘屏障的膜可以阻止非常可怕的物质，比如汞进入胎儿。
TED-Ed（视频版）
But in 1960, many experts believed that the placental barrier shielded a fetus from harm.
但在 1960 年，许多专家认为胎盘屏障可以保护胎儿免受伤害。
Scishow 精选系列
The thing about methionine is that it's really easily absorbed across the almost-impenetrable placental barrier, as well as the similar barrier that's supposed to protect the brain.
蛋氨酸很容易被几乎无法穿透的胎盘屏障吸收，以及保护大脑的类似屏障吸收。
中文百科
胎盘 Placenta
（重定向自Placental barrier）
胎盘（学名：placenta），又称「胞衣」，是一种只有在雌性哺乳类动物怀孕时或是每一只哺乳类动物还是胎儿时才有的暂时器官，位于子宫内侧的表面。
胎盘由两部分组成。一部分和胚胎在生物学与基因上都相连，另一部分是母体的一部分。
胎盘内层是羊膜囊，羊膜囊包含羊水。胎盘植入于子宫壁，并且从母体的血液获取营养与氧气，排出废物。这个接口也是一个障壁，拦下某些可能会伤害胚胎的物质。但是很多物质是胎盘无法拦截的，像是酒精以及一些抽烟产生的物质。几种病毒也可以穿过胎盘，如德国麻疹。
胎盘还有新陈代谢跟内分泌活动。胎盘会分泌黄体激素，对维持怀孕很重要。也会分泌乳促素，增加母体的血糖与血脂，使得胎儿的营养摄取增加。
英语百科
Placenta 胎盘
（重定向自Placental barrier）
The placenta (also known as afterbirth) is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, provide thermo-regulation to the fetus, waste elimination, and gas exchange via the mother's blood supply, fight against internal infection and produce hormones to support pregnancy. The placenta provides oxygen and nutrients to growing babies and removes waste products from the baby's blood. The placenta attaches to the wall of the uterus, and the baby's umbilical cord develops from the placenta. The umbilical cord is what connects the mother and the baby. Placentas are a defining characteristic of placental mammals, but are also found in some non-mammals with varying levels of development. The homology of such structures in various viviparous organisms is debatable and, in invertebrates such as Arthropoda, is analogous at best.
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