How does angiotensin II cause an increase in blood pressure?Multiple ChoiceBy inhibiting the release of aldosteroneBy stimulating the release of reninBy increasing peripheral resistanceBy promoting the excretion of sodium
Question
How does angiotensin II cause an increase in blood pressure?Multiple ChoiceBy inhibiting the release of aldosteroneBy stimulating the release of reninBy increasing peripheral resistanceBy promoting the excretion of sodium
Solution
Angiotensin II causes an increase in blood pressure by increasing peripheral resistance. This peptide hormone causes vasoconstriction, or the narrowing of blood vessels, which increases the resistance to blood flow and thus raises blood pressure. It also stimulates the release of aldosterone, which promotes sodium and water reabsorption, further contributing to increased blood volume and blood pressure. However, the most direct answer to your question is that it increases peripheral resistance.
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