Q. What is the main effect of natriuretic peptides on renal function?
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A.
Increase sodium reabsorption
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B.
Decrease glomerular filtration rate
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C.
Promote diuresis
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D.
Stimulate renin release
Solution
Natriuretic peptides promote diuresis by inhibiting sodium reabsorption and increasing urine output, helping to lower blood pressure.
Correct Answer:
C
— Promote diuresis
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Q. What role does aldosterone play in renal physiology?
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A.
Increases sodium reabsorption
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B.
Decreases potassium secretion
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C.
Inhibits water reabsorption
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D.
Stimulates urine production
Solution
Aldosterone increases sodium reabsorption in the kidneys, which helps to regulate blood pressure and fluid balance.
Correct Answer:
A
— Increases sodium reabsorption
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Q. Which part of the nephron is primarily responsible for filtration?
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A.
Proximal convoluted tubule
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B.
Loop of Henle
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C.
Glomerulus
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D.
Distal convoluted tubule
Solution
The glomerulus is the part of the nephron where blood filtration occurs, allowing water and solutes to pass into the renal tubule.
Correct Answer:
C
— Glomerulus
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