Which Choice Describes the Countercurrent Mechanism of the Nephron Loop

question 6

Multiple Choice

Which choice describes the countercurrent mechanism of the nephron loop?

• A) Water moves out of the ascending limb; sodium moves in the ascending limb
• B) Water moves in the ascending limb; sodium moves out of the ascending limb
• C) Water moves out of the descending limb; sodium moves out of the ascending limb
• D) Water moves in the descending limb; sodium moves out of the descending limb