Final answer:
The statement is true: the active or pumping phase of the cardiac cycle is the systolic phase, during which the heart contracts and pumps blood into the arteries.
Step-by-step explanation:
The statement is true: the active or pumping phase of the cardiac cycle is indeed the systolic phase. The cardiac cycle includes two main phases: systole and diastole. During systole, the heart muscle contracts, causing the ventricles to pump blood out into the arteries. This is why systole is often referred to as the pumping phase. The ventricles exert pressure to force the blood through the circulatory system, ensuring that oxygen and nutrients are distributed throughout your body. Conversely, diastole is the phase where the heart muscles are relaxed, and the heart chambers are filled with blood, often referred to as the filling stage. Together, these phases ensure that blood circulation is efficiently maintained, providing vital functions for the body's survival.