Urinary System Quiz: Filtration, Urine Production, and Dehydration
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Questions and Answers

What is the function of natriuretic hormone in diabetic kidney disease?

  • Results in Na+ secretion (correct)
  • Inhibits ADH release
  • Causes Ca++ reabsorption
  • Promotes vasodilation in the nephron

Which hormone controls sodium levels indirectly?

  • Natriuretic hormone
  • PTH
  • Renin
  • ADH (correct)

What happens when baroreceptors sense a decrease in blood pressure?

  • Widespread vasodilation occurs (correct)
  • There is an increase in BP
  • Ca++ reabsorption is blocked
  • Juxtaglomerular apparatus releases renin

Which hormone promotes an increase in Ca++ reabsorption?

<p>Parathyroid hormone (D)</p> Signup and view all the answers

What is the role of hydrogen ions in kidney function?

<p>Maintaining acid/base homeostasis (D)</p> Signup and view all the answers

How does alcohol affect the kidney function?

<p>Inhibits ADH release (D)</p> Signup and view all the answers

What is the main function of the nephrons in the kidney?

<p>Produce urine (C)</p> Signup and view all the answers

What is the purpose of the renal hilum?

<p>To recover water and solutes for reabsorption (C)</p> Signup and view all the answers

What does the presence of ketones in the urine indicate?

<p>Diabetes or high-fat diet (A)</p> Signup and view all the answers

What happens in the descending loop of Henle?

<p>Reabsorption of water using aquaporin channel proteins (D)</p> Signup and view all the answers

Which hormone increases sodium reabsorption in the distal convoluted tubule?

<p>Aldosterone (D)</p> Signup and view all the answers

What is the function of the macula densa in the nephron?

<p>Measures sodium concentration (C)</p> Signup and view all the answers

What is the role of the collecting ducts in the kidney?

<p>Control water reabsorption (C)</p> Signup and view all the answers

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