1. Topic: Excretory System Aim: Describe parts & functions of the Excretory System.

2. http://www.youtube.com/watch?v=CL78yNLlLmo

3. Function Removal of metabolic (cellular) wastes from the body

4. Metabolic wastes: –CO 2, H 2 0, salt, nitrogenous wastes (urea)

5. PARTS OF THE EXCRETORY SYSTEM

6. Lungs Excrete CO 2 & H 2 O vapor CO 2 & H 2 0 vapor

7. Skin Excrete urea, salt & water in sweat (perspiration)

8. Temperature regulation –Evaporation of sweat from skin cools body Maindex

11. Liver Produces UREA –Released into blood and then moves to kidneys

12. Detoxification = waste products, toxins, and drugs removed from the blood

13. Kidneys a. Filter wastes from blood

16. b. Maintains water balance in body c. Produces urine

17. Did you know… About 440 gallons of blood flow through the kidneys each and every day! If you eat a lot of red beets, your urine will actually be colored red. The average person passes 9,202 gallons of urine in his/her lifetime. That’s enough to fill 315 bathtubs.

19. Urinary System

20. Kidneys Blood filtered Urine produced

21. Ureters Transport urine from kidneys to bladder

22. Urinary Bladder http://www.youtube.com/watch?v=uAy5C2YYlbk Muscular organ that stores urine

23. Urethra Tube that leads urine out of the body