Urinary System Function Quiz

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Questions and Answers

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

  • Promotes Na+ secretion (correct)
  • Increases Ca++ reabsorption
  • Blocks phosphate reabsorption
  • Induces vasodilation

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

  • Aldosterone
  • Parathyroid hormone (correct)
  • Natriuretic hormone
  • Renin

What is the role of baroreceptors in the body's volume sensing mechanisms?

  • Control Ca++ levels
  • Regulate urine pH
  • Monitor blood pressure changes (correct)
  • Promote widespread vasodilation

How does alcohol affect the release of ADH in the body?

<p>Inhibits its release (A)</p> Signup and view all the answers

Which hormone indirectly controls sodium levels in the body?

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

What is the function of vitamin D synthesis to ensure calcium balance in the body?

<p>Enhances calcium absorption (B)</p> Signup and view all the answers

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

<p>Measures sodium and flow rate (D)</p> Signup and view all the answers

What does oliguria, or producing 300-500 mL of urine per day, indicate?

<p>Kidney failure (C)</p> Signup and view all the answers

What causes the body to plump up in the case of systemic edema?

<p>Low osmotic pressure in circulating blood (B)</p> Signup and view all the answers

Which hormone increases sodium reabsorption in the distal convoluted tubule?

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

What is the main purpose of the renal hilum in the kidney?

<p>Serves as entry and exit for vessels, nerves, and ureters (C)</p> Signup and view all the answers

Which condition is indicated by polyuria, or excreting more than 2.5 liters of urine per day?

<p>Diabetes mellitus (C)</p> Signup and view all the answers

What is the specific gravity related to in urine analysis?

<p>Number of solutes per unit volume (C)</p> Signup and view all the answers

What is the main function of nephrons in the kidney?

<p>Filter waste products from blood (D)</p> Signup and view all the answers

'Descending loop' and 'Ascending loop' are parts of which structure in the kidney anatomy?

<p>'Loop of Henle' (C)</p> Signup and view all the answers

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

<p>Reabsorb water and regulate sodium reabsorption (D)</p> Signup and view all the answers

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