Which change normally occurs when water intake is low and antidiuretic hormone secretion rises?
Correct answer: B. Urine volume decreases and urine becomes concentrated
- A. Urine volume increases and urine becomes dilute
- B. Urine volume decreases and urine becomes concentrated
- C. Urine volume increases and urine becomes concentrated
- D. Urine volume remains unchanged and urine becomes dilute
Explanation
Higher antidiuretic hormone levels increase water reabsorption from the collecting ducts. The result is a smaller volume of more concentrated urine, which helps maintain body fluid volume.
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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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40 free Urinary System MCQs from Anatomy and Physiology for Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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