What factors determine the pressure within the heart's ventricles as they contract and rest? Select all that apply.

Question

Quizplus · Accepted Answer

The pressure within the heart's ventricles as they contract and rest is influenced by the rate of heartbeat (B), the condition of blood vessels (C), the volume of blood (D), and the force of the heartbeat (E). These factors affect how much blood is pumped and the resistance against which the heart has to pump, thereby influencing ventricular pressure. The amount of red blood cells (A) affects the oxygen-carrying capacity of the blood but does not directly determine ventricular pressure.

What Factors Determine the Pressure Within the Heart's Ventricles as They