2023 Excretory Products and their EliminationRegulation of Kidney Function Hard Question 1 of 8 in Regulation of Kidney Function

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:

A C, D and E only
B A and B only
C B, C and D only
D A, B and E only

The answer is C.

Solution

Fluid loss switches on osmoreceptors, and ADH raises blood pressure and prevents diuresis.

An excessive loss of fluid from the body can activate osmoreceptors which stimulate the hypothalamus to release ADH. Hence, switch on osmoreceptors. ADH causes an increase in blood pressure. An increase in blood pressure can increase the glomerular blood flow and thereby the GFR.

Concept ADH, ANF and osmoreceptors

Regulation of Kidney Function in past papers

8 questions from this chapter have appeared across 8 exam years.