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Urinary System: Filtration and Dehydration
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Urinary System: Filtration and Dehydration

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Questions and Answers

What is responsible for an increase in Ca++ reabsorption and blocking phosphate reabsorption?

  • Aldosterone
  • Renin
  • Parathyroid hormone (correct)
  • Natriuretic hormone
  • Which hormone promotes vasodilation in the nephron?

  • Renin
  • Aldosterone
  • Natriuretic hormone (correct)
  • ADH
  • What controls the movement of sodium in the body indirectly?

  • ADH (correct)
  • Natriuretic hormone
  • Renin
  • Parathyroid hormone
  • Which electrolyte typically moves opposite of sodium most of the time?

    <p>Potassium</p> Signup and view all the answers

    What is responsible for regulating calcium levels in the body?

    <p>PTH</p> Signup and view all the answers

    What is the primary reason for the darker urine and slight scent of ammonia in cases of dehydration?

    <p>Elevated specific gravity due to minimal urine output</p> Signup and view all the answers

    What is a potential consequence of oliguria where a person excretes only 300-500 mL of urine per day?

    <p>Possible dehydration or blood loss</p> Signup and view all the answers

    What is the main function of the urethra in the excretory system?

    <p>Transport urine from the bladder to outside the body</p> Signup and view all the answers

    Which structure in the kidney is primarily responsible for filtering blood and forming urine?

    <p>Nephron</p> Signup and view all the answers

    What process occurs at the glomerulus that aids in filtering solutes into Bowman's capsule?

    <p>Glomerular filtration</p> Signup and view all the answers

    What role does the macula densa play in kidney function?

    <p>Measuring sodium levels</p> Signup and view all the answers

    Which hormone plays a key role in increasing sodium reabsorption in the distal convoluted tubule?

    <p>Aldosterone</p> Signup and view all the answers

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