MICROANATOMY

Detailed explanation-1: -Overview. A heart attack (myocardial infarction) happens when one or more areas of the heart muscle don’t get enough oxygen. This happens when blood flow to the heart muscle is blocked.

Detailed explanation-2: -It happens when one or more parts of the heart muscle don’t get enough oxygen. That occurs when blood flow to the heart muscle is blocked. If the blood and oxygen supply is cut off, muscle cells of the heart begin to suffer damage and start to die (infarct). Permanent) damage begins within 30 minutes of blockage.

Detailed explanation-3: -When damage or death to part of the heart muscle occurs due to ischemia, it’s called a heart attack, or myocardial infarction (MI). About every 40 seconds, someone in the United States has a heart attack.

Detailed explanation-4: -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-5: -During myocardial infarction, cardiac myocytes in the ischemic zone die by both apoptosis and necrosis.