ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
ENDOCRINE ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ADH travels in the blood to the kidneys and ADH bonds to receptors on kidney cells
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The water level in the body is low and the hypothalamus releases ADH
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The kidneys absorb more water and the water in urine decreases
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None of the above
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Detailed explanation-1: -ADH then acts primarily in the kidneys to increase water reabsorption, thus returning the osmolarity to baseline.
Detailed explanation-2: -Renal conservation of electrolytes and water occurs normally during sleep. Antidiuretic hormone (ADH), aldosterone (ALDO), and prolactin (PRL) are hormones that may have interactive effects on kidney function.
Detailed explanation-3: -Low levels of anti-diuretic hormone will cause the kidneys to excrete too much water. Urine volume will increase leading to dehydration and a fall in blood pressure.
Detailed explanation-4: -ADH decreases the volume of urine by increasing the reabsorption of water in the kidneys. ADH causes contraction of vascular smooth muscles, constriction of arterioles, and peripheral vasoconstriction. This manifests at the skin as palor and brings about vasodilation of the coronary and cerebral arteries (Fig. 3.5).