Does the right and left ventricles pump at the same time?

Yes, the right and left ventricles of the heart pump simultaneously. During each heartbeat, both ventricles contract together to eject blood: the right ventricle pumps deoxygenated blood to the lungs for oxygenation, while the left ventricle pumps oxygenated blood to the rest of the body. This coordinated action is crucial for maintaining efficient circulation and overall cardiovascular function.