Which statement correctly describes the role of the loop of Henle in urine formation?
Correct answer: A. It creates a medullary gradient that supports water conservation
- A. It creates a medullary gradient that supports water conservation
- B. It stores urine before voluntary bladder emptying
- C. It filters plasma before it enters Bowman capsule
- D. It prevents sodium movement throughout the nephron
Explanation
The loop of Henle contributes to the medullary concentration gradient through different water and solute permeabilities in its limbs. This gradient allows ADH to promote water reabsorption from the collecting ducts.
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About Urinary System
The urinary system includes the kidneys, ureters, urinary bladder and urethra, with emphasis on nephron structure and urine formation. It explains glomerular filtration, tubular reabsorption, tubular secretion, water and electrolyte regulation, acid base balance, and the roles of ADH and aldosterone in maintaining homeostasis.
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