Chemical Coordination And Integration

Q: Osmoreceptors are sensitive to changes in ionic concentrations and volumes of body fluids. Which amo...

Osmoreceptors in the body are activated by changes in blood volume, body fluid volume and ionic concentration. An excessive loss of fluid from the body can activate these receptors which stimulate the hypothalamus to release antidiuretic hormone (ADH) or vasopressin from the neurohypophysis. ADH facilitates water reabsorption from latter parts of the tubule, thereby preventing diuresis.

Osmoreceptors are sensitive to changes in ionic concentrations and volumes of body fluids. Which among the following best describes the function of these osmoreceptors?

They stimulate renin production to induce vasoconstriction and increase blood pressure

They stimulate pituitary gland to facilitate the secretion of mineralocorticoids to adjust the changes in mineral composition of the body fluid.

They stimulate atrial wall to release atrial natriuretic factor to induce vasodilation and reduce blood pressure.

They stimulate hypothalamus to facilitate the release of the anti-diuretic hormone and increase water reabsorption.

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Chemical Coordination And Integration

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