The urinary system is a very complex set of structures carrying out

complicated chemical reactions. For this discussion, do a search to

find a urinary system tutorial that helps explain or illustrate the

processes involved with the system. You can find an overview tutorial

of the entire system, or you may choose one portion of the system to

illustrate, using the structure name in your search to narrow it down.

Science sites for kids can be helpful in describing a complicated

process in simpler terms. There are also hospital sites and

anatomy/physiology sites that have excellent interactive tutorials that

help the student understand the processes better. Post your URL

with a brief explanation of the concept or process you have chosen.