Amniotic fluidThe happiest time in a woman's life is the time of her first pregnancy. The fetus is inside its uterus surrounded by a thin membrane which is the amniotic sac and inside is the amniotic fluid in which the unborn baby floats and moves easily. This amniotic fluid is a yellowish liquid and like water, it contains fetal cells and approximately 98% water, 2% salts, carbohydrates, proteins, peptides, lipid and electrolyte enzymes (Penn Medicine, 2013 ). This fluid filled the extracelomic cavity, then the amniotic space is identified and easily visible a few days after implantation. Amniotic fluid is made from the mother's body, so the water in the amniotic fluid comes from maternal plasma cells that move across the fetal membranes. This movement could take place after vessel development, so that water and salts move from maternal plasma cells through the placenta to the fetus and then to the amniotic fluid. In the early embryo, the volume of amniotic fluid is approximately 25 ml at 10 weeks and it increases to approximately 400 ml at 20 weeks, during this period the composition of amniotic fluid is similar to fetal plasma (Mark , William and Michael, 2005). Also at this time, amniotic fluid serves as a physiological buffer, as it passes through the nonkeratinized fetal skin and the surface of the amnion, placenta, and umbilical cord are all permeable to water and solutes. During the gestational week, or about the eighth week, the fetal kidneys begin to function and the fetus begins to make its own contribution to the amniotic fluid, which can be done by swallowing and urinating into the amniotic fluid. obtained by the excretion of fetal urine. More precisely, it can be said that the fetus...... middle of paper...... and the volume of amniotic fluid during pregnancy complicated by diabetes. 182(4), 901-4. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/10764470American Pregnancy Association. (2007). Low amniotic fluid levels: Oligohydramnios. Retrieved from http://americanpregnancy.org/pregnancycomplications/highamnioticfluidpolyhydramnios.htmNHS Choices (2013). What is the amniotic sac? Retrieved from http://www.nhs.uk/chq/Pages/2310.aspx?CategoryID=54Valerie, C. (2011). Embryo and embryonic membranes. (6th ed.). United States of America: Davis Company. Retrieved from http://online.statref.com.ezproxy.uaeu.ac.ae/Document.aspx?docAddress=D1JLb2YDRVYMyAcrtgKbCA%3d%3d&SessionID=1C26A0AKVDGPSVSHPrusa, A. and Hengstschlager, M. (2002). Amniotic fluid cells and human stem cell research: a new link. 8(11), 253-257. Retrieved from http://www.medscimonit.com/download/index/idArt/4825