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Excretory System
What is the function of the excretory system?
1. Removes wastes from the body
2. Cleans the blood
3. Produces urine
4. Inv...
Processing Piece
• Draw a picture to show that blood:
1) Absorbs nutrients in the villi in the small intestines
2) Release...
What does the kidney do?
• The kidney cleans the blood by filtering out
waste products, like uric acid.
• The kidney turns...
What does the bladder do?
• Stores urine until it leaves the body.
What are the ureters and the urethra?
• Ureters are tubes that carry urine
from the kidneys to the bladder.
• The urethra ...
Processing Piece
• Draw a picture to illustrate how the kidneys,
ureters, kidneys and urethra are connected.
How does your body control the
amount of sodium (salt) in the blood?
• Kidneys control how much sodium goes into
the urine...
Processing Piece:
Review:
• In the capillaries of normal cells and tissues:
o _____________________ goes out of the blood ...
Exit Ticket
1. What is the function of the excretory system?
2. What do the kidneys do?
3. How does the excretory system h...
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Excretory system

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Excretory

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Excretory system

  1. 1. Excretory System
  2. 2. What is the function of the excretory system? 1. Removes wastes from the body 2. Cleans the blood 3. Produces urine 4. Involves the kidney and bladder
  3. 3. Processing Piece • Draw a picture to show that blood: 1) Absorbs nutrients in the villi in the small intestines 2) Releases nutrients into cells and takes away the cell’s wastes in capillaries 3) Gets rid of wastes in the kidneys
  4. 4. What does the kidney do? • The kidney cleans the blood by filtering out waste products, like uric acid. • The kidney turns the waste products into urine, which goes to the bladder.
  5. 5. What does the bladder do? • Stores urine until it leaves the body.
  6. 6. What are the ureters and the urethra? • Ureters are tubes that carry urine from the kidneys to the bladder. • The urethra is the tube that carries urine to the outside of your body.
  7. 7. Processing Piece • Draw a picture to illustrate how the kidneys, ureters, kidneys and urethra are connected.
  8. 8. How does your body control the amount of sodium (salt) in the blood? • Kidneys control how much sodium goes into the urine. • If there is too much sodium in the blood, more sodium will go into the urine.
  9. 9. Processing Piece: Review: • In the capillaries of normal cells and tissues: o _____________________ goes out of the blood and o _____________________ goes into the blood • In the alveoli of the lungs: o ____ goes into the blood and ____ goes out of the blood • In the villi of the small intestines: o ______________ goes into the blood • In the kidneys: o _______________ goes out of the blood
  10. 10. Exit Ticket 1. What is the function of the excretory system? 2. What do the kidneys do? 3. How does the excretory system help you maintain homeostasis?

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