And, although the organization's purpose is to support the interests of the United States, the Green Berets exist in the haze that floats between the country and other nations, groups and peoples -- they're the nimble fingertips of the United States military and the quiet professionals of the U.S. government.
ST Segment Elevation Myocardial Infarction (STEMI) is the name cardiologists currently use to describe a classic heart attack. âMyocardial infarction,â or heart attack, refers to the death of a portion of the heart muscle (myocardium) caused by blood flow interruption. âST segment elevationâ refers to a particular pattern seen on the electrocardiogram (ECG), often seen when a substantial part of the heart muscle is dying.
As a large, muscular pump, the heart relies on a constant supply of oxygen-rich blood to function. Without a blood supply, heart muscle begins to die. This is exactly what happens during a heart attack. Myocardial infarction, the medical term for heart attack, literally means heart tissue damage or death.. Heart attacks most commonly occur when one or more of the coronary arteries â a network of blood vessels that supply blood to the heart â become blocked. Heart muscle becomes starved for oxygen and nutrients.