Multiple choice

Vasodilators opens (dilate) the blood vessels. Which among the following is a vasodilator?

  1. Nicotine

  2. Angiotensin II

  3. Epinephrine and norepinephrine

  4. Antidiuretic hormone

  5. Atrial natriuretic peptide

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Atrial natriuretic peptide (ANP), a hormone secreted by the atria of the heart, lowers blood pressure by causing vasodilation and by stimulating the kidneys to excrete more water and Na +(lowering blood pressure by reducing blood volume).