Final answer:
MI resulting from a complete blockage of a coronary artery refers to a Myocardial Infarction, which is tissue death in the heart muscle due to lack of oxygen and blood flow.
Step-by-step explanation:
Myocardial Infarction (MI), commonly known as a heart attack, refers to the damage to the heart muscle that occurs when blood flow is obstructed due to a complete blockage of a coronary artery. This condition can result in the death of myocardial cells, leading to serious health consequences, and is commonly associated with atherosclerotic plaque buildup within the arteries.
A coronary artery blockage restricts the flow of blood and oxygen to the myocardium, which is the muscular tissue of the heart. Without this vital supply, affected areas of the heart are starved of oxygen, causing tissue death. Although chest pain and pressure are typical symptoms of an MI, it is important to note that in some cases, a heart attack may not present any symptoms at all.
The final answer to the question is: A. Myocardial Infarction.