👉 The stroke fluid refers to the smooth, continuous movement of blood through the heart's chambers and valves during each heartbeat. It is characterized by a seamless transition between contraction (systole) and relaxation (diastole), ensuring efficient blood pumping. During systole, the heart muscle contracts, forcing blood out through the valves into the arteries, while in diastole, the heart relaxes, allowing blood to fill the chambers from the previous contraction. This fluidity is crucial for maintaining optimal cardiac output and overall cardiovascular health.
