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.
Name and quickly define the three different types of Cultures. Pure - Only one type of identifiable MO present. Mixed - More than one type identifiable MO present. Contaminated - Pure or mixed with unidentified MO present.