1. Excretory System
AKA
Urinary System

2. Job of the Excretory System
Collects wastes produced by cells
Removes wastes from the body

3. Organs on the Excretory System
Kidneys
Ureters
Bladder
Urethra

5. Filtering out wastes
Waste and needed materials are filtered out of the blood
Needed materials return to the blood
Waste is eliminated from the body

6. Urine formation Urine forms from the filtered material in the kidney
The material that is filtered out and not recycled back to the body (glucose, water, etc) will collect in tubes in the kidney then are sent out of the body

7. Excretion and Homeostasis
Excretion maintains homeostasis by keeping the body’s internal environment stable and free of harmful levels of chemicals.
Organs responsible for excretion and homeostasis are kidneys, lungs, skin and liver