Animation explaining the Urinary system of Human Body and Nephron.\rbr\rbrHigh school level human anatomy lesson for the urinary system. To view the interactive version (has drag and drop anatomy activities, the menu along the top is .\rbr\rbrFind 1500 education videos available at Biology seems to be the most interesting subject for reading and learning .\rbr\rbrVisit ,watch all human body systems & other educational videos for free. The endocrine system is the collective name given to .