original: the ventricular muscle twitches randomly , rather than contracting in unison , and so the ventricles fail to pump blood into the arteries and into systemic circulation .
simplifications: the ventricular muscle in the heart twitches sometimes , rather than pumping steadily , and so the ventricles do not pump blood into the arteries blocking circulation . because the individual ventricles in the ventricular muscle twitch randomly , the muscle can not pump blood into arteries and the circulation system . without contracting in unison the ventricular muscle twitches randomly as a result ventricles fail to pump blood into the arteries and into systemic circulation the ventricles fails to pump blood into the arteries and systemic circulation , since the muscle twitches randomly rather than contracting in unison . the ventricular muscle twitches randomly rather than contracting in unison and so the ventricles fail to pump blood into the arteries and into systemic circulation . the failure of the ventricles to supply blood to the arteries and circulatory system is because the ventricular muscles work randomly and not by contraction together . the ventricular muscle twitches randomly , rather than contracting together , and so the -lrb- parts of the heart -rrb- do not pump blood into the arteries and into -lrb- related to the deep-down , basic way something works -rrb- circulation . the ventricular muscle twitches randomly , and the ventricles fail to pump blood into the arteries and into systemic circulation .