Question:
A fall in glomerular filtration rate activates
A fall in glomerular filtration rate activates
Updated On: Apr 19, 2024
- adrenal medulla to release adrenaline
- juxta glomerular cells to release renin
- posterior pituitary to release vasopressin
- adrenal cortex to release aldosterone
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The Correct Option is B
Solution and Explanation
The kidneys have built-in mechanisms for the regulation of glomerular filtration rate. One such efficient mechanism is carried out by juxtaglomerular apparatus (JGA). JGA is a special sensitive region formed by cellular modifications in the distal convoluted tubule and the afferent arteriole at the location of their contact. A fall in GFR can activate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the GFR come back to normal
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