Curran c doddabele Posted January 16, 2011 Posted January 16, 2011 One day I was explaining the how the digestive system works then she suddenly asked me how does urination take place I still have not found out can anybody help me
hypervalent_iodine Posted January 16, 2011 Posted January 16, 2011 From wikipedia: "To eliminate soluble wastes, which are toxic, most animals have excretory systems. In humans soluble wastes are excreted by way of the urinary system, which consists of thekidneys, ureters, urinary bladder, and urethra. The kidneys extract the soluble wastes from the bloodstream, as well as excess water, sugars, and a variety of other compounds. Remaining fluid contains high concentrations of urea and other substances, including toxins. Urine flows through these structures: the kidney, ureter, bladder, and finally the urethra. Urine is produced by a process of filtration, reabsorption, and tubular secretion."
avefrm Posted January 23, 2011 Posted January 23, 2011 One day I was explaining the how the digestive system works then she suddenly asked me how does urination take place I still have not found out can anybody help me We regret
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