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 is produced in the hypothalamus and released by the posterior pituitary gland.
Detailed explanation-2: -When the body is low in water, the pituitary gland secretes vasopressin (also called antidiuretic hormone) into the bloodstream. Vasopressin stimulates the kidneys to conserve water and excrete less urine.
Detailed explanation-3: -ADH travels in the bloodstream to its target organ, the kidneys. It causes the kidney tubules to become more permeable . This means more water can leave the kidney tubule to be reabsorbed back into the blood during selective reabsorption.
Detailed explanation-4: -An increased osmolality draws water from cells into the blood thus dehydrating specific brain osmoreceptors that stimulate drinking and release of anti diuretic hormone (ADH or vasopressin).