Explain the pathological processes associated with the term “heart muscle died.”

Mr. Smith was lifting a heavy piece of furniture when he experienced crushing pain in his chest, began sweating heavily, and was nauseated. His wife drove him to the hospital, where he was diagnosed with a myocardial infarction (MI, also called a heart attack) and given intravenous drugs to dissolve a clot that was obstructing a major coronary artery. After his hospitalization, Mr. Smith’s doctor told him that some of his heart muscle had died.