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Which of the following statements are correct?
A. An excessive loss of body fluid from the body switches off osmoreceptors.
B. ADH facilitates water reabsorption to prevent diuresis.
C. ANF causes vasodilation.
D. ADH causes increase in blood pressure. E. ADH is responsible for decrease in GFR.
Choose the correct answer from the options given below:
Choose the correct answer from the options given below: ·
A and B only
B, C and D only
A, B and-E only
C, D and E only
Answers (1)
The correct answer is Option 2) B, C, and D only.
B. ADH facilitates water reabsorption to prevent diuresis: This statement is correct. Antidiuretic hormone (ADH), also known as vasopressin, acts on the kidneys to increase water reabsorption. It helps prevent excessive water loss and promotes water retention in the body.
C. ANF causes vasodilation: This statement is correct. Atrial natriuretic peptide (ANF) is a hormone released by the heart in response to increased blood volume and pressure. It promotes vasodilation, which leads to the relaxation of blood vessels and increased excretion of sodium and water.
D. ADH causes an increase in blood pressure: This statement is correct. ADH acts on the blood vessels, causing vasoconstriction. This constriction increases peripheral vascular resistance, which can contribute to an increase in blood pressure.
For incorrect options,
A. An excessive loss of body fluid from the body switches off osmoreceptors: This statement is incorrect. Osmoreceptors are specialized cells that detect changes in osmotic pressure and regulate the release of antidiuretic hormone (ADH). Excessive loss of body fluid would lead to increased osmotic pressure and activate osmoreceptors, not switch them off.
E. ADH is responsible for a decrease in GFR (glomerular filtration rate): This statement is incorrect. ADH does not directly influence the glomerular filtration rate. It primarily affects water reabsorption in the renal tubules.
Based on the evaluations, the correct answer is Option 2) B, C, and D only.
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