Final answer:
Blood flow during systole and diastole is not dramatic because pressure changes are not extreme. The heart maintains a relatively consistent pressure to ensure steady blood flow.
Step-by-step explanation:
During the cardiac cycle, blood flow is influenced by pressure changes in the heart chambers and blood vessels. The pumping of blood during systole and diastole is not dramatic because the pressure changes are not extreme. Blood moves from areas of high pressure to low pressure, and the heart maintains a relatively consistent pressure to ensure steady blood flow.
For example, during diastole, the ventricles relax and fill with blood from the atria. The pressure in the atria is normally low, approaching zero, to allow blood to flow back into the heart. This helps maintain a consistent flow of blood instead of a dramatic pulsatile flow.