Which Is NOT True About the Countercurrent Multiplier System of the Kidney

question 60

Multiple Choice

Which is NOT true about the countercurrent multiplier system of the kidney? 

• A)It creates a hyperosmolar medullary interstitial fluid that allows the kidneys to form hypertonic urine.
• B)The descending loop of Henle is permeable to water.
• C)There is active transport of sodium and chloride out of the ascending limb of the loop of Henle.
• D)The ascending loop of Henle is not permeable to water.
• E)The fraction of filtered NaCl reabsorbed from the ascending limb equals the fraction of filtered water reabsorbed from the descending limb.

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Definitions:

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A measure of acidity or alkalinity in the blood, with a normal range usually between 7.35 and 7.45.

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The act of breathing out or expelling air from the lungs through the mouth or nose.

Semi-Reclined Position

A position where the individual is lying back at an angle, elevating the upper body to some degree, which can aid in breathing and digestion.