1. EXCRETORY SYSTEM

2. LIFE FUNCTION
Excretion- the process by which metabolic wastes are removed from an organism

3. WATER, CARBON DIOXIDE, UREA, MINERAL SALTSCO
METABOLIC WASTES 2
WATER, CARBON DIOXIDE, UREA, MINERAL SALTS

4. Organs of excretion are the . . .
lungs, liver, skin & kidneys.

5. rid the body of carbon dioxide and water (water vapor)
LUNGS
rid the body of carbon dioxide and water (water vapor)

6. LIVER
removes harmful substances such as bacteria, certain drugs and hormones from the blood

7. liver purifies or detoxifies the blood
bile considered an excretory product
breaks down excess amino acids  formation of urea

8. contains sweat glands through which sweat is released
SKIN
contains sweat glands through which sweat is released
water, salt, urea (small amount) excreted as perspiration (98% water, 2% salt, urea)

9. SWEAT A Visual Breakdown!!!

11. Another major role of the skin is the removal of excess heat.
evaporation of sweat removes heat and cools the body

12. PORE
SWEAT GLAND

13. 2. control of concentration of most of the body fluids
KIDNEYS
1. Remove the waste of cellular metabolism from the blood
2. control of concentration of most of the body fluids

14. WHAT ARE THE FOUR METABOLIC WASTES?
A QUICK REVIEW
WHAT ARE THE FOUR METABOLIC WASTES?

16. Welcome to the Path of Pee
Urinary System
Welcome to the Path of Pee
THE SYSTEM WITHIN A SYSTEM

17. made up of kidneys, ureters, bladder, urethra
URINARY SYSTEM
made up of kidneys, ureters, bladder, urethra
produces and removes urine from the body

18. CENSORED

19. 2. control of concentration of most of the body fluids
KIDNEYS
1. Remove the waste of cellular metabolism from the blood
2. control of concentration of most of the body fluids

20. Cortex
Medulla
Pelvis

21. Functional unit of the kidney is the nephron.
The nephron is a microscopic filter

22. URETER
tube through which urine passes from each kidney to the urinary bladder

24. where urine is stored until excretion
URINARY BLADDER
where urine is stored until excretion

26. CAUTION:
CAT BLADDER
IF you are squeamish or have just eaten a school lunch; please look away 1 2 3 4 5

27. URETHRA
the tube that carries urine from the bladder to the outside of the body

28. CENSORED

29. Some Common Problems

30. Caused by alcohol abuse
Cirrhosis of the liver
BAD
GOOD
Caused by alcohol abuse

31. KIDNEY STONES - stones form that block the ureter

32. Jaundice - bilirubin builds up in the blood causing the skin to color yellow. If not treated it could cause poisoning in the blood.
NOT MY KID

33. NOT MY
HAND
Gout - Uric acid builds up in the joints causing painful arthritic like symptoms.

34. THIS IS WHERE IT ENDS

35. It's True!
Ever eat kidney beans? They were named after your kidneys which are a similar shape and color!

36. It's True!
Your kidneys have about a million structures that filter out liquids and wastes.

37. It's True!
About 440 gallons of blood flow through the kidneys each and every day!