MEDICAL
URINARY BLADDER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following best describes secretion in the formation of urine? The movement of the substances out of the:a. blood into Bowman’s capsuleb. blood into the tubulec. tubules into interstitial fluidsd. glomerulus into the tubules
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B.
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Blank
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Secretion. Secretion, which occurs in the proximal tubule section of the nephron, is responsible for the transport of certain molecules out of the blood and into the urine. Secreted substances include potassium ions, hydrogen ions, and some xenobiotics.
Detailed explanation-2: -Recall that substances that need to be removd from the body but were not yet filtered, can be secreted. This reabsorption occurs in the PCT, loop of Henle, DCT, and the collecting ducts while the majority of secretion occurs in the PCT and DCT (Table 25.5 and Figure 25.5. 1).
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