URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At which of these sites is the osmotic pressure lowest? (least concentrated filtrate)
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glomerular capillary
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proximal tubule
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bottom of the loop of Henle
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first part of the distal tubule
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collecting duct
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Explanation:
Detailed explanation-1: -The filtrate then enters the thick ascending limb, which is permeable to sodium ions. The sodium ions rush out of the filtrate into the interstitium, which now has lower concentration than the filtrate.
Detailed explanation-2: -The late distal tubule and the collecting tubules are made permeable to water by the presence in the circulation of antidiuretic hormone (ADH) released from the posterior pituitary gland (p. 212). The early distal tubule is not permeable to water and its permeability is not changed by ADH.
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