Question

which of the following events would cause a decrease in mean arterial blood pressure? multiple choice constriction of blood vessels in the skin an increase in adh production activation of the renin - angiotensin mechanism release of atrial natriuretic factor an increase in aldosterone production

Explanation:

• Constriction of blood vessels in the skin increases peripheral resistance and can raise blood - pressure.
• An increase in ADH (antidiuretic hormone) production leads to water reabsorption, increasing blood volume and blood pressure.
• Activation of the renin - angiotensin mechanism results in the production of angiotensin II which causes vasoconstriction and increases blood pressure.
• An increase in aldosterone production promotes sodium and water reabsorption, increasing blood volume and blood pressure.
• Atrial natriuretic factor (ANF) causes vasodilation, increases sodium excretion, and decreases blood volume, thus decreasing mean arterial blood pressure.

Answer:

Release of atrial natriuretic factor