Q5. Describe the role of ADH in affecting the concentration of urine (including a description of...

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Medical Sciences

Q5. Describe the role of ADH in affecting the concentration ofurine (including a description of the countercurrent exchange)[10pts].
Total Body Water = 42L
Extracellular Fluid = 14L
Osmolarity = 300mOsmoles/L
Intracellular Fluid = 28L

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The most important variable regulating antidiuretic hormone secretion is plasma osmolarity or the concentration of solutes in blood Osmolarity is sensed in the hypothalamus by neurons known as anosmoreceptors and those neurons in turn stimulate secretion from the neurons that produce antidiuretic hormoneWhen plasma osmolarity is below a certain threshold theosmoreceptors are not activated and secretio of antidiuretic hormone is suppressed When See Answer

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