MICROANATOMY

Detailed explanation-1: -Myocardial infarction (MI), colloquially known as “heart attack, ‘’ is caused by decreased or complete cessation of blood flow to a portion of the myocardium. Myocardial infarction may be"silent, ‘’ and go undetected, or it could be a catastrophic event leading to hemodynamic deterioration and sudden death.

Detailed explanation-2: -Heart Attack (Myocardial Infarction) A heart attack (medically known as a myocardial infarction) is a deadly medical emergency where your heart muscle begins to die because it isn’t getting enough blood flow. A blockage in the arteries that supply blood to your heart usually causes this.

Detailed explanation-3: -A heart attack, also called a myocardial infarction, happens when a part of the heart muscle doesn’t get enough blood. The more time that passes without treatment to restore blood flow, the greater the damage to the heart muscle. Coronary artery disease (CAD) is the main cause of heart attack.

Detailed explanation-4: -The three types of heart attacks are: ST segment elevation myocardial infarction (STEMI) non-ST segment elevation myocardial infarction (NSTEMI) coronary spasm, or unstable angina.

Detailed explanation-5: -Terminology. Myocardial infarction (MI) refers to tissue death (infarction) of the heart muscle (myocardium) caused by ischaemia, the lack of oxygen delivery to myocardial tissue.