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.
The official definition of culture is âthe customary beliefs, social norms, and material traits of a racial, religious, or social groupâ (Webster Dictionary.com, 2012) whereas popular culture is the opposite of high cultural art forms like the opera, historic art, classical music, traditional theater or literature.he official definition of culture is âthe customary beliefs, social norms, and material traits of a racial, religious, or social groupâ (Webster Dictionary.com, 2012) whereas popular culture is the opposite of high cultural art forms like the opera, historic art, classical music, traditional theater or literature.