Heart Ventricles: Relaxed vs Contracted States Explained #3846382 (License: Personal Use)

The image illustrates two key phases of the cardiac cycle: diastole (relaxed state), where ventricles fill with blood, and systole (contracted state), where ventricles eject blood into pulmonary artery and aorta. The left ventricle, thicker-walled due to higher pressure demands, shows marked volume reduction upon contraction, while the right ventricle, thinner-walled, contracts more gently to pump blood to the lungs.

Used in medical education, cardiology resources, or patient-facing health websites to explain heart function; matches user intent for understanding heart anatomy, cardiac cycle, or conditions like heart failure.