Urinary system

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Urinary system

  1. 1. Do Now: (5min)<br />Concept Mapping<br />Use the terms to complete the concept map.<br />food <br />digestive system<br />mechanical digestion<br />chemical digestion<br />proteins <br />enzymes<br />nutrients<br />
  2. 2. Digestive System Quiz (15min)<br />Put away everything except a pen/pencil.<br />
  3. 3. 7.2 The Urinary System pg. 192<br />
  4. 4. Objectives<br />List three major body systems that function in excretion.<br />Describe the parts and functions of the urinary system.<br />Explain how the kidneys filter blood.<br />Explain how the body balances water levels.<br />Describe three disorders of the urinary system.<br />
  5. 5. 7.2 Urinary System<br />Excretion - removing waste products from the body.<br />Examples: sweating, breathing, and urinating. <br />The urinary system releases waste products from your blood<br />http://kidshealth.org/kid/htbw/kidneys.html<br />
  6. 6. 7.2 Urinary System<br />kidney.niddk.nih.gov/kudiseases/pubs/Yoururinary/<br />urinary system the organs that<br />make, store, and eliminate urine<br />
  7. 7. 7.2 Urinary System<br />The Kidneys as Filters<br />The kidneys clean the blood and excrete products as urine. <br />Inside each kidney are more than 1 million microscopic filters called nephrons.<br />
  8. 8. 7.2 Urinary System<br />Sweat and Thirst <br /><ul><li>sweat cools you down
  9. 9. water content of the blood drops, the salivary glands make less saliva, resulting in thirst.</li></ul>Antidiuretic Hormone When you get thirsty, antidiuretic hormone is released. This hormone tells the kidneys to take water from the nephrons and return it to the bloodstream.<br />
  10. 10. 7.2 Urinary System<br />Diuretics<br /><ul><li>Diuretics cause the kidneys to make more urine, which decreases the amount of water in the blood.
  11. 11. Example caffeine</li></li></ul><li>Urinary System Problems<br />Bacterial Infections Bacteria can get into the bladder and ureters through the urethra and cause painful infections.<br />Kidney Stones Salts and other wastes can collect inside the kidneys and form kidney stones.<br />Kidney Disease Damage to nephrons can prevent normal kidney functioning and can lead to kidney disease. <br />

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