Circulatory System                      Respiratory System                               Immune System                          How to Prevent Diseases

Text Box: “Excretory” System
Text Box: How “It” Works:
•	Get instructions from brain
•	Helps control amount of salt in body
•	Breaks down protein
•	More sweat comes out when you’re hot
•	Expel carbon dioxide from lungs
•	Helps keep internal body healthy (homeostasis)
What body parts are included/how:
•	Liver-protect body by extracting poison in blood
•	Sweat glands-replaces dead skin with new skin
•	Lungs- expels carbon dioxide
•	Kidney-filters out wastes in blood
What system needs to work properly:

•	Eat balance of 6 major food groups
•	Drink lots of fluids
•	Exercise
•	Get plenty of rest
Interesting facts and information:
•	5% of what comes in comes out
•	When you have 16 oz. in bladder have to use bathroom
How system prevents diseases:
•	By filtering out wastes
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Text Box: Bibliography: The Excretory System by Alvin, Virginia, and Robert Silverstein, ã1994, The Digestive and The Excretory System by Susan Dudley Gold,ã2004, Discovery Works by Houghton Mifflin Co.,ã1999
Text Box: Names of team members: Scott, Alex, Rob, Aaron S.