Angina pectoris, commonly known as angina, is the sensation of chest pain, pressure, or squeezing, often due to ischemia of the heart muscle from obstruction or spasm of the coronary arteries.
Pure Culture. A pure culture is a population of cells or multicellular organisms growing in the absence of other species or types.
1 A culture is a way of life of a group of people--the behaviors, beliefs, values, and symbols that they accept, generally without thinking about them, and that are passed along by communication and imitation from one generation to the next.ULTURAL ETHNOCENTRISM. 1  Ethnocentrism is the belief that one's own culture is superior to that of other cultures. 2  It is a form of reductionism that reduces the other way of life to a distorted version of one's own.