Multiple choice

The cardiac output

  1. increases by the hormone aldosterone released from the adrenal medulla

  2. increases by stimulation of the vagus nerve

  3. is calculated as the ratio of oxygen consumption and the difference in PO2 of the venous and arterial blood

  4. is mainly actuated by the end-diastolic volume of the blood

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

Cardiac output is the volume of blood pumped by the heart per minute. It is mainly determined by the end-diastolic volume of the blood.