羊水 ,又叫“胞浆水”。当妇女怀孕之后 ,随着胚胎的发育 ,胎盘和胎膜由小到大 ,胎膜内层的羊膜开始分泌羊水 ,由最初的５０毫升 ,到妊娠３６～３８周时 ,可增加到１０００毫升左右。同时 ,羊水还随着胎儿的不断吞咽和排尿及羊膜的不断分泌、吸收而更换。胎儿就是在这个充满羊 Amniotic fluid, also known as “cytoplasm water.” When the woman after pregnancy, with the development of the embryo, the placenta and fetal membranes from small to large, amniotic membrane within the amniotic membrane of the inner membrane secretion of amniotic fluid, from the initial 50 ml, 36 to 38 weeks of pregnancy can be increased to about 1000 ml . At the same time, amniotic fluid also with the fetus constantly swallowing and urination and amniotic secretions continue to absorb, replace. The fetus is full of sheep in this