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Angiotensin II:

A. Stimulates vasoconstriction
B. Stimulates the adrenal cortex to secrete aldosterone
C. Stimulates vasodilatation
D. Choice (A) and (C)
E. Choice (A) and (B)

User Nashon
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1 Answer

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Final answer:

Angiotensin II induces vasoconstriction and stimulates the secretion of aldosterone, both of which are critical for raising blood pressure.

Step-by-step explanation:

Angiotensin II is a multifunctional hormone that plays a critical role in the regulation of blood pressure and fluid balance. Its two main actions are causing vasoconstriction and stimulating the adrenal cortex to secrete aldosterone. These actions work together to increase blood pressure and regulate electrolyte balance. Vasoconstriction directly increases systemic vascular resistance, leading to a rise in blood pressure. At the same time, aldosterone increases sodium reabsorption in the kidneys, which enhances water retention and volume, further contributing to an increase in blood pressure. Therefore, the correct answer to the question is E. Choice (A) and (B), meaning Angiotensin II stimulates vasoconstriction and it stimulates the adrenal cortex to secrete aldosterone.

User Paul Russell
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