Topic : Excretory System Aim : Describe parts & functions of the Excretory System.
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Transcript of Topic : Excretory System Aim : Describe parts & functions of the Excretory System.
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Topic: Excretory SystemAim: Cite specific textual evidence to
describe parts & functions of the Excretory System.
Do Now: Take out your homework. And the respiratory system ditto from yesterday.
HW: Study for Monday’s Digestive and Circulatory System Test!
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Trachea
Nose
Nasal cavityPharynx
Epiglottis Larynx
BronchusBronchioles
Diaphragm
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11.
14.
15.
Bronchioles
AlveoliCapillary
Alveolus
12.
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Did you know…•An average person sheds from about 30000 to 40000 skin cells every minute.
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Did you know…•A liver would be about 3 pounds in an average human and it is rubbery to touch.
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Did you know…•About 440 gallons of blood flow through the kidneys each and every day!
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Did you know…•The average person pees about 3000 times a year.
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Did you know…•The average person passes 9,202 gallons of urine in his/her lifetime. That’s enough to fill 315 bathtubs.
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Did you know…•If you eat a lot of red beets, your urine will actually be colored red.
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• Regulate the amount of water you have in your body
• Help remove wastes from the body
1. Describe the functions of the excretory system.
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• METABOLIC wastes – CO2– Water– Urea– Salts
2. Identify the wastes your excretory system removes.
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• Sweat glands releases PERSPIRATION
3. Describe why the skin is considered an excretory organ.
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• Water, salts and urea4. Identify the metabolic wastes found in perspiration.
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• Sweat glands release water on to your skin to prevent you from getting overheated.
5. How does the skin regulate your body temperature?
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• The liver filters nitrogen out of your blood, changing it into UREA.
6. Describe why the liver is an excretory organ.
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• DETOXIFIES the blood (removes toxins such as drugs and alcohol)
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• UREA7. Identify the metabolic waste produced by the liver.
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• Filter out urea from your blood
8. Explain the main function of the kidneys,
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• Regulate the amount of water in your blood.
9. Describe another function of the kidneys.
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• URINE10. Identify the liquid produced by the kidneys.
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• Water
• Salt
• Urea
11. Identify the metabolic wastes found in urine.
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• Urinary bladderhttp://www.youtube.com/watch?v=uAy5C2YYlbk
12. Identify the muscular bag that stores urine.
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• Ureters13. Identify the tubes that transport urine from the kidneys to the urinary bladder.
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• Urethra14. Identify the structure that transports urine out of the body.
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• Lungs: release CO2 and H2O vapor
CO2 & H20 vapor
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Did you know…•About 440 gallons of blood flow
through the kidneys each and every day!
•If you eat a lot of red beets, your urine will actually be colored red.
•The average person passes 9,202 gallons of urine in his/her lifetime. That’s enough to fill 315 bathtubs.
![Page 38: Topic : Excretory System Aim : Describe parts & functions of the Excretory System.](https://reader034.fdocuments.in/reader034/viewer/2022042718/568132ad550346895d995a2c/html5/thumbnails/38.jpg)
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Let’s summarize…
1. Explain the function of the excretory system.
2. Explain the difference between excretion and egestion.
3. Describe the major organs of the excretory system and their functions.
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1.Identify A, B, and D.
2.Which organ produces urea?
3.What is the function of D?
4.What does organ A excrete?
5.Which organ detoxifies the blood?
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1.Identify structures A, B, C, and D.
2.Which structure produces urine?
3.What is the path of urine?
4.What are the 2 main functions of A?
5.What stores urine?
6.What is the function of D?
7.Where would kidney stones form?
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1.Which letter in the diagram below indicates the organ that is involved in the production of urea?
2.Which organ filters urea from the blood?
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1. Which letter indicates a structure responsible for filtering urea out of the bloodstream? 2. Which organ contains nephrons?3. What is the function of D?