1. Packet #88 Chapter #44

2. Introduction Helps maintain homeostasis Regulates water balance Removal of harmful substances from the blood Lungs {Respiratory System} Remove CO2 Liver {Digestive System} Removes worn out Red Blood Cells Produces Urea Amino Acid Deamination

4. Introduction

6. Major Parts of Urinary System Kidneys Produces urine Contains toxic substances and waste products Ureter Tube from kidney to bladder Bladder Muscular sac that stores urine Stores 200-300 ml of urine Once at that level, triggers reflex arc that stimulates spinal cord Use of the Nervous System Urethra Tube from bladder to outside world 1.5 inches long in females 6-8 inches long in males

7. Excretion Across the Kingdom

8. Excretion Across the Kingdom II

9. The Kidneys & Urine Production I

10. The Kidneys & Urine Production II Figures 43.14 & 43.15

11. The Endocrine System & Excretory System