MEDICAL
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If you are over-hydrated (high water potential in the blood), the body must excrete excess water. To do so, the brain triggers the pituitary gland to ____
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release MORE ADH, making the collecting duct MORE permeable
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release LESS ADH, making the collecting duct LESS permeable
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release MORE ADH, making the collecting duct LESS permeable
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release LESS ADH, making the collecting duct MORE permeable
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Explanation:
Detailed explanation-1: -Dehydration causes the hypothalamus to release ADH (antidiuretic hormone) via the posterior pituitary gland. The ADH signal tells the kidneys to recover water from urine, which dilutes the blood plasma.
Detailed explanation-2: -Antidiuretic hormone (ADH) is a chemical produced in the brain that causes the kidneys to release less water, decreasing the amount of urine produced. A high ADH level causes the body to produce less urine. A low level results in greater urine production.
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