One complete heart beat, during which both atria and ventricles contract and relax, is termed _____ and is marked by a succession of changes in _____ and _____. within the heart the cardiac cycle, blood volume, pressure
Pan vs. Epi(demic) Good to know: An âepidemicâ is simply a proliferation of an infectious disease beyond that normally observed. A âpandemicâ is an epidemic that spreads across regions or continents. The number of dead is not part of the definition. Indeed, a pandemic may kill no one at all. October 27, 2009
PAN-PAN. Pan-Pan is derived from the French word panne, which means failure or breakdown. Pan-Pan most often refers to a mechanical failure or breakdown of some kind.