1. The Excretory System
Urine for a Great Time!!!

2. Engage
Watch the following video that shows thirty-seven -year old Dan Whitmore who has kidney failure. He has to spend three days a week attached to a dialysis machine. He’s on the waiting list for a kidney transplant.

3. Explore CONSTRUCT THE URINARY SYSTEM
You will make a model of the primary components of their urinary system. Once finished with this activity you will be able to identify the structures, their functions and order the process of the urinary system through your model.
Kidney Filtration Simulation Activity
This lab activity that will simulate the overall function of the kidneys

4. Explain Contributing Excretory Organs Liver Lungs Skin Kidneys
removes hazardous chemicals from the blood.
"detoxifies" the blood
For this reason, alcoholics and other types of addicts have a higher incidence of liver disease.
Some proteins & other nitrogenous compounds are broken down in the liver forming a compound call urea
Lungs
excrete waste like carbon dioxide and water.
Skin
rids waste from the body through sweat glands
Kidneys

5. Feedback System: Temperature Regulation
How does the body keep from overheating?
On the other hand, how does the body keep warm?

6. Primary Urinary Organs
2 Kidneys
Renal cortex (outer region)
Renal medulla (inner region)
Nephron: functional unit of kidney
Renal artery/vein: kidney blood flow
2- Ureters: urine excretory duct
1 - Urinary bladder: urine storage
1 - Urethra: urine elimination tube

7. Kidneys Two reddish organs just above the waist behind the stomach
Filter the blood and removes waste

9. Ureter
Connects the kidneys to the urinary bladder

10. Urinary Bladder
Smooth muscle bag
Stores waste solution - urine

11. Urethra Connects bladder to outside of the body
Allows urine to pass out of the body

12. Nephron Filtering unit of the kidney
Blood enters full of waste and leaves filtered
Blood enters under high pressure and flows into the capillary beds

14. U-shaped Tubules (Loop of Henle)
Most of the ions and water
All of the glucose and amino acids
Reabsorbed into the bloodstream
This is how the body’s water is conserved
Homeostasis is maintained