Heart Attach
Pathophysiologly „X The heart is the human bodys hardest working organ. ... If blood flow to the myocardium is interrupted, an injury known as an infarct occurs, in other words, a myocardial infarction, more commonly known as a heart attack. In most cases of myocardial infarction, this restriction of blood flow to the heart results from atherosclerosis, a process in which atheromas, layers of yellowish plaque made up of cholesterol, fats, and other particles, are deposited on the walls of arteries. ... Prolonged periods of ischemia can lead to tissue injury, which may be severe enough to cause a heart attack. Although atherosclerosis is ultimately responsible for almost all heart attacks, the attack itself is triggered by a particular event. ... In other cases, the plaque can rupture or the artery can go into spasm; both of these events may also block the coronary artery, depriving a portion of the heart muscle of its vital oxygen.