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
Popular Pages. 1  Epi is the root-word for many other words. 2  Eu is the root-word for many other words. 3  Duct,duce & duc are the root-words for many other words. 4  Dict & dic are the root-words for many other words. 5  Ultra is the root-word for many other words.