PATHOLOGY MCQ
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The final part of the nephron tubule that does some final reabsorption and excretion, and carries urine to the collecting duct.
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distal convoluted tubule
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renal corpuscle
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proximal convoluted tubule
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Bowman’s capsule
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Explanation:
Detailed explanation-1: -The DCT, which is the last part of the nephron, connects and empties its contents into collecting ducts that line the medullary pyramids. The collecting ducts amass contents from multiple nephrons and fuse together as they enter the papillae of the renal medulla.
Detailed explanation-2: -DCT cells are largely water impermeable, and reabsorb sodium and chloride across the apical membrane via electroneurtral pathways. Prominent among this is the thiazide-sensitive sodium chloride cotransporter, target of widely used diuretic drugs.
Detailed explanation-3: -Reabsorption and secretion take place simultaneously in the tubular part (PCT, Loop of Henley, DCT) of the nephron.
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