For secretion of aldosterone,adrenal cortex i | vedclass

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Question

(B) The secretion of aldosterone is regulated by the Renin-Angiotensin-Aldosterone System $(RAAS)$.When blood pressure or blood volume decreases,the j

Vedclass · Accepted Answer

Angiotensin $-II$

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(B) The secretion of aldosterone is regulated by the Renin-Angiotensin-Aldosterone System $(RAAS)$.When blood pressure or blood volume decreases,the juxtaglomerular $(JG)$ cells release renin.Renin converts angiotensinogen in the blood to Angiotensin $-I$,which is then converted to Angiotensin $-II$ by the Angiotensin-Converting Enzyme $(ACE)$.Angiotensin $-II$ acts as a powerful vasoconstrictor and also stimulates the adrenal cortex to secrete aldosterone.Aldosterone promotes the reabsorption of $Na^+$ and water from the distal convoluted tubule $(DCT)$ and collecting duct,thereby increasing blood volume and blood pressure.

For secretion of aldosterone,adrenal cortex is stimulated by $-$

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