HISTOLOGY
URINARY SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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PCT
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Loop of Henle
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DCT
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Glomerulus
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Detailed explanation-1: -After reabsorption of K+ along the proximal tubule and loop of Henle, approximately 10% of filtered K+ reaches the DCT. As fluid travels down the DCT, the luminal potassium concentration increases, indicating that net K+ secretion occurs along the distal tubule.
Detailed explanation-2: -Passing through the DCT, the filtrate enters the collecting ducts. Further reabsorption of water takes place in the collecting ducts. 3. Tubular secretion-Secretion is the final step in the formation of urine.
Detailed explanation-3: -The distal convoluted tubule also contains intercalated (I) cells, responsible for the secretion of acid. The collecting ducts are composed of I cells and also principal (P) cells, which become permeable to water under the influence of vasopressin.
Detailed explanation-4: -Answer and Explanation: The part of the nephron where the distal convoluted tubules (DCTs) drain into is the collecting duct. The collecting ducts collect fluid from the renal tubules.