placenta 是什么意思

音标：[ plə'sentə ]

名词复数:placentae

中文翻译与英英解释

	n. (pl. placentas, -tae [-ti；-ti]) 【解剖学】胎盘；【植物；植物学】胎座。

	the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
	that part of the ovary of a flowering plant where the ovules form

The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply. "True" placentas are a defining characteristic of eutherian or "placental" mammals, but are also found in some snakes and lizards with varying levels of development up to mammalian levels.

例句与用法

	1.	The fat-soluble vitamins(a, d and e)seem to be impeded by the placenta . 似乎胎盘阻碍脂溶性维生素（A，D和E）的通过。
	2.	Starch grains present in the embryo sac and placenta are utilized by the embryo . 存在于胚囊和胎座中的淀粉粒为胚胎所利用。
	3.	There is hollow in the thickened wall of a uterus into which the placenta grows . 在变厚的子宫壁上有一凹处，胎盘就长在里面。
	4.	The virus traverses the placenta and, may seriously interfere with organogenesis . 病毒可透过胎盘，可能严重妨碍胎儿器官的发生。
	5.	Parturition is defined as the physiologic process by which the pregnant uterus delivers the fetus and placenta from the maternal organism . 分娩的定义是妊娠子宫将胎儿和胎盘从母体排出的过程。
	6.	The puerperium extends from the time of expulsion of the placenta until the maternal organism returns to its normal nonpregnant state . 产后期是指从胎盘排出，母体生殖器官恢复到正常不孕的阶段。
	7.	Main ingredient : ultramicro pearl sheep placenta element 主要成分：超微珍珠粉羊胎素。
	8.	Formation of a placenta in the uterus 胎盘形成胎盘在子宫中的形成过程
	9.	Legal consideration summary caused by placenta dinner 引起的法律思考
	10.	The baby was newborn with an umbilical cord and placenta attached 女婴为初生婴儿，并连脐带及胎盘。

placenta是什么意思

placenta 是什么意思

中文翻译与英英解释

例句与用法