1. Excretory and Urinary Systems

2. What is the purpose of the excretory system?
To remove and eliminate waste from different systems in your body!
The urinary system is part of the excretory system, and made up of excretory organs
What are some examples from the other human body systems?
Digestive
Respiratory
What would happen if these wastes were not eliminated?

3. What is the purpose of the urinary system?
Remove wastes from your blood
Wastes are produced from using nutrients in your body
Also removes excess water and balances salt concentrations
Which body systems are related to the urinary system?

4. Organs of the urinary system
Kidneys
Nephrons
Ureters
Bladder
Urethra

5. KIDNEYS Major organ of urinary system: 2 bean shaped kidneys
Filters blood that has collected waste from cells
All of your blood passes through your kidneys many times a day
Each kidney contains around 1 million nephrons
Tiny filtering units
Cup and duct structure

6. URETERS, BLADDER AND URETHRA
Tubes that lead from kidney to the bladder
Bladder:
Elastic muscular organ that holds urine until it leaves the body
Urethra:
Tube that carries urine from bladder to outside of your body