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
The group maintains that this index better measures the real-world impact of price changes, particularly for people on a budget. And, largely as the result of the recent run-up in gas prices, this everyday price index (EPI) suggests that Americans are being pinched far more tightly than the official inflation measure would have you believe. Over the past year, the EPI is up just over 8 percent, according to the economics group.