Endocrinology/VasopressinADH/ControlToSweating/basic
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POINT!
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① With sweating, plasma osmolarity increases. This is in the opposite direction (
blue) to the plasma osmolarity-decreasing effect of the reabsorption (through the water channels, which are increased by vasopressin, ADH).
② With sweating, (blue→red) negative feedback facilitates (the synthesis, secretion, and blood concentration of) vasopressin (anti-diuretic hormone, ADH). This increases the number of water channels and the reabsorption of water. The plasma osmolarity-decreasing effect of the reabsorption increases, and the plasma osmolarity becomes adequate.
Challenge Quiz
1.
ヒーターと夏とは室温に対して 同じ方向 逆の方向 に作用する。そのため、夏、負のフィードバックが、ヒーターの機能を 低下 亢進 する。