The excretory system eliminates waste from the body through the urinary system and sweat glands. It removes urine, a mixture of water and waste products, from the blood through the kidneys and ureters into the bladder. Sweat, a mixture of water and minerals, is removed through pores in the skin. Both urine and sweat leave the body as ways for the body to cool down and remove unwanted substances.

1. EXCRETORY SYSTEM
BY
HELENA
AND EVA

2. What does it do?
• It eliminates the waste subtances
that our body doesn´t need.
• It is made up of:
• URINARY SYSTEM SWEAT
GLANDS

3. What does our body
eliminates?
• It eliminates:
• Urine: which is a mixture of water
and waste producs.
Sweat:which is a mixture of water and
minerals.

4. THE PROCES
• First, the renal arteries carry blood to the
kidneys.
• Then, the kidneys eliminates the waste
products from the blood and mixes with
water.This is call urine.
• The urine goes down through the ureters and
reaches the bladder.
• When the bladder is geting full, our brain tell
us to go to the toilet.
• Finally, the urine is released through a tube call
urethra.

5. SWEATING

6. How do we eliminate sweat?
•We eliminate the
sweat through
pores/skin.

7. Why do we
sweat?
•Because our body
cools down.

8. What is
sweat?•It is the mixture of
water and minerals.

9. How does it
leave our
body?
•Sweat leaves our
body through
pores.

10. THANKS FOR
WATCHING