The distal convoluted tubule (DCT) is shorter than the proximal convoluted tubule (PCT).
True
False
The Correct Answer is A
A. True: Anatomically, the proximal convoluted tubule is significantly longer and more tortuous than the distal segment. This increased length provides a greater surface area for the massive reabsorption of filtrate components. The DCT is shorter and has a less developed brush border.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. False: Any reduction in the total surface area available for filtration, such as through mesangial cell contraction or glomerular scarring, directly decreases GFR. Conversely, relaxation of mesangial cells increases surface area and GFR. It is a primary variable in renal hemodynamic regulation.
Correct Answer is B
Explanation
B. False: Antidiuretic hormone is synthesized in the hypothalamus and released by the posterior pituitary gland. Its primary function is to decrease urine output by increasing water reabsorption in the renal collecting ducts. This process conserves systemic water and concentrates the final urine.
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