Question

multiple choice question
which hormone is secreted by the heart and has a generalized vasodilator effect that helps to lower blood pressure?

angiotensin ii

natriuretic peptide

epinephrine

aldosterone

Explanation:

To solve this, we analyze each option:

• Angiotensin II: Raises blood pressure (vasoconstrictor), so incorrect.
• Natriuretic peptide: Secreted by the heart, causes vasodilation and lowers blood pressure, matches the description.
• Epinephrine: Increases blood pressure (vasoconstriction in some vessels), incorrect.
• Aldosterone: Regulates sodium/water, indirectly affects BP but not secreted by heart, incorrect.

Answer:

B. Natriuretic peptide