CHAPTER 4 THE CARDIOVASCULAR SYSTEM Weight of the heart 300g Work: 75/min, 10000 beats /day 35 million beats /year, 2.5 billion beats/life 70ml/beat,
The Phases of the Cardiac Cycle (1)Period of isometric (isovolumetric or isovolumic) contraction Events: ventricular contraction ventricular pressure.
