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(D) The $RAAS$ (Renin-Angiotensin-Aldosterone System) is a critical mechanism for regulating blood pressure and fluid balance.$1$. When blood pressure

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Aldosterone

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(D) The $RAAS$ (Renin-Angiotensin-Aldosterone System) is a critical mechanism for regulating blood pressure and fluid balance.$1$. When blood pressure or glomerular filtration rate $(GFR)$ decreases,the juxtaglomerular $(JG)$ cells release the enzyme Renin.$2$. Renin converts Angiotensinogen in the blood to Angiotensin-$I$,which is further converted to Angiotensin-$II$ by Angiotensin-Converting Enzyme $(ACE)$.$3$. Angiotensin-$II$ acts as a powerful vasoconstrictor and also stimulates the adrenal cortex to release the hormone Aldosterone.$4$. Aldosterone promotes the reabsorption of $Na^+$ and water from the distal parts of the kidney tubules,which increases blood volume and blood pressure.

Angiotensin-$II$ activates the adrenal cortex to release..................

Similar Questions

Juxtaglomerular cells of the kidney secrete which hormone?

The following abbreviations are used in the context of excretory functions,what do they stand for?
$(a)$ $ANF$
$(b)$ $ADH$
$(c)$ $GFR$
$(d)$ $DCT$

The reabsorption of $Na^+$ from the kidney is highly affected by which hormone?

Which part of the nephron is affected by aldosterone?

Which of the following features activates the $JG$ cells?
$I.$ Fall in $GBP$
$II.$ Fall in $GBF$
$III.$ Fall in $GFR$
Choose the correct option.

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