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The Excretory System<br />
Part of Homeostasis<br />Helps to maintain homeostasis<br />Removes metabolic wastes<br />If not removed, these wastes cou...
Different Waste Products<br />Your body produces many waste products<br />Some examples are salt, carbon, dioxide, urea<br...
The Skin<br />The skin is an organ of excretion<br />The skin excretes water and urea in sweat<br />
The Lung<br />The lungs are organs of excretion<br />They expel the waste product carbon dioxide.<br />
The Liver<br />Converts amino acids into useful compounds<br />Nitrogen wastes are created in the process<br />The nitroge...
The Kidneys<br />Remove waste products<br />Maintain blood pH<br />Regulate water content and volume of the blood<br />
Nephrons<br />Converts amino acids into useful compounds<br />Nitrogen wastes are created in the process<br />The nitrogen...
Reabsorption<br />Some materials (water, amino acids, etc.) are reabsorbed into the blood<br />This primarily takes after ...
Secretion<br />Secretion is the process in which some molecules move from the blood to the filtrate<br />This takes place ...
Urine Formation<br />Urine: material that is not reabsorbed into the blood<br />Urine includes urea, salt, water,, and oth...
Summary<br />
Bibliography<br />Miller, Kenneth R., and Joseph S. Levine. "The Excretory System." Prentice Hall Biology. N.p.: Person Ed...
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Excretory System Function

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Transcript of "Excretory System Function"

  1. 1. The Excretory System<br />
  2. 2. Part of Homeostasis<br />Helps to maintain homeostasis<br />Removes metabolic wastes<br />If not removed, these wastes could be harmful<br />
  3. 3. Different Waste Products<br />Your body produces many waste products<br />Some examples are salt, carbon, dioxide, urea<br />Urea: toxic compound produced when amino acids are used for energy<br />Wastes leave body through excretion<br />
  4. 4. The Skin<br />The skin is an organ of excretion<br />The skin excretes water and urea in sweat<br />
  5. 5. The Lung<br />The lungs are organs of excretion<br />They expel the waste product carbon dioxide.<br />
  6. 6. The Liver<br />Converts amino acids into useful compounds<br />Nitrogen wastes are created in the process<br />The nitrogen becomes urea, which is expelled out of the body<br />
  7. 7. The Kidneys<br />Remove waste products<br />Maintain blood pH<br />Regulate water content and volume of the blood<br />
  8. 8.
  9. 9. Nephrons<br />Converts amino acids into useful compounds<br />Nitrogen wastes are created in the process<br />The nitrogen becomes urea, which is expelled out of the body<br />
  10. 10.
  11. 11. Reabsorption<br />Some materials (water, amino acids, etc.) are reabsorbed into the blood<br />This primarily takes after filtration in Bowman’s capsule in the loop of Henle<br />
  12. 12. Secretion<br />Secretion is the process in which some molecules move from the blood to the filtrate<br />This takes place after filtration<br />Molecules secreted into the filtrate include hydrogen and other light compounds<br />
  13. 13. Urine Formation<br />Urine: material that is not reabsorbed into the blood<br />Urine includes urea, salt, water,, and other substances.<br />Urine is located in the loop of Henle<br />Nephron ➝ Collecting Duct ➝ Ureter ➝ Urinary Bladder ➝ Urethra<br />
  14. 14. Summary<br />
  15. 15. Bibliography<br />Miller, Kenneth R., and Joseph S. Levine. "The Excretory System." Prentice Hall Biology. N.p.: Person Education, Inc., 2007. 985-989.<br /> <br /> <br />"Treatment Methods For Kidney Failure: Kidney Transplantation." National Kidney and Urologic Diseases Information Clearing House. 9 Jan. 2009 <http://www.kidney.niddk.nih.gov/kudiseases/pubs/transplant/>.<br />"Your Kidneys and How They Work." National Kidney and Urologic Diseases Information Clearinghouse. Aug. 2007. 11 Jan. 2009  <http://www.kidney.niddk.nih.gov/Kudiseases/pubs/yourkidneys/>.<br />
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