1. The Excretory System and You: A Love Story (sort of)

2. Why do I have to have an excretory system?
Your body must remove unneeded and unused chemicals in order to maintain homeostasis.

3. Kidneys: Organs that remove excess water and urea from the blood.

4. Urinary bladder-an organ that stores urine until it can be disposed of.

5. Skin-helps your body get rid of excess water and salts.

6. Lungs-Your lungs remove carbon dioxide.

7. Liver-Your liver removes chemicals and dead blood cells
Liver-Your liver removes chemicals and dead blood cells. It recycles these into bile, which aids in digestion.

8. Gall Bladder-stores bile until it is ready to be secreted into the small intestines.

9. Colon-aka large intestines remove water and excess or unusable food
Colon-aka large intestines remove water and excess or unusable food. It gets waste products ready to go!