Why is the impulse passed to the base of the ventricles?

The impulse is passed to the base of the ventricles to ensure that the heart contracts efficiently and effectively. This allows the ventricles to contract from the bottom upwards, which helps to push blood out into the aorta and pulmonary artery more effectively. The specialized conduction system, including the Purkinje fibers, facilitates this coordinated contraction, optimizing blood flow and maintaining proper circulation. This mechanism is crucial for the heart's overall function and performance.