the contraction of the ventricles to pump blood out of the heart) and diastolic (related to diastole, the relaxation of the heart muscle to fill with blood). Heart sound 1 (S1) is the normal ...

Wide complexes; because they come from the ventricles and do not use the normal ventricular conduction system, action potentials need to travel from myocyte to myocyte, which is much slower ...

The QRS duration will lengthen when electrical activity takes a long time to travel throughout the ventricular myocardium. The normal conduction system in the ventricles is called the His-Purkinje ...

The ventricles – spaces in the brain where CSF is made -- produce too much fluid. Something blocks the normal flow of fluid and causes it to build up. The bloodstream can’t absorb all the fluid.

The regular arrhythmia occurring at the beginning of the electrocardiogram was identified as ventricular bigeminy. Single ventricular premature complexes (VPCs), as well as pairs and triplets of ...