Multiple choice Which of the following is the correct statement? All arteries carry oxygenated blood. An adult human has systolic and diastolic pressures as 80 mm Hg and 120 mm Hg respectively. Bundle of His is a network of muscle fibres distributed throughout the heart walls. Cardiac output is defined as the amount of blood pumped by both ventricles per second. Average cardiac output is 5.3 litre per minute. Reveal answer Fill a bubble to check yourself E Correct answer Explanation Correct statement. Average cardiac output is 5.3 litre per minute.