Remarkably, it is found that no bacteria found in urine, unless the urinary system has no infection, and thus urine is quite sterile, unlike feces. However, in some cases, if a person has high blood glucose, the excess glucose is expelled with urine. Urine is mainly composed of about 95% of water and 5 % of urea, which is the waste resulted due to the breakdown of proteins. Urinary bladder can usually hold 150-500 mL of urine before pain receptors are initiated. It is produced in the kidneyand drains through ureters into the urinary bladder, where it is stored temporary until urination takes place. The liquid nitrogenous waste, which is produced and excreted by the urinary system of animals, is called urine.
The quantity of fluid is examined ultrasonically by measuring amniotic pockets. Then the amount starts to reduce to about 400 mL at the 42 nd week. The quantity of amniotic fluid increases steadily throughout the pregnant period, and it reaches up to 1100-1500 mL by the 36 th week of gestation. Amniotic fluid has a much similar composition of maternal plasma. The basic functions of amniotic fluid are to serve as a cushion and protect the fetus from vibrations, and exchange of substances such as water and molecules between the fetus and maternal circulation. In addition, it allows the fetus to move freely in the placenta and maintains even temperature condition around fetus. It also contains protein, sugar, sodium chloride, sodium, non-protein nitrogen, creatinine, urea and uric acid. It is the fluid that surrounds the developing fetus and mainly consists water. The anatomy and physiology of urine and amniotic fluid vary widely.Īmniotic fluid is a colorless fluid that is found inside a membranous sac, called amnion and formed from the placenta. However, the main component of these two fluids is water. Amniotic fluid and urine are two important fluids in the animal body.
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