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
PPO vs EPO. There are many insurance systems created all over the world to try and make sure that people get their medical treatments at very reasonable rates. It is difficult to predict when you are going to get sick and when you are going to need medical attention, and it is therefore very important to be properly insured.