ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Endocardium
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Myocardium
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Pacemaker
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Pericardium
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Detailed explanation-1: -Myocardial infarction (MI): It occurs when an area of the heart muscle (myocardium) is damaged or dies after blood supply is blocked. It’s the classic medical term for a heart attack. Coronary thrombosis: It occurs when a clot is formed in one of the arteries that supply blood to the heart muscle.
Detailed explanation-2: -Myocardial damage begins with acute inflammation of the microvasculature and marked infiltration of neutrophils. Capillary damage from luminal narrowing and thrombus formation, as mentioned previously, causes ischemia, which leads to progressive fibrosis [34].
Detailed explanation-3: -Epicardium. The Heart Wall: The wall of the heart is composed of three layers, the thin outer epicardium, the thick middle myocardium, and the very thin inner endocardium. The dark area on the heart wall is scarring from a previous myocardial infarction (heart attack).
Detailed explanation-4: -Localization of myocardial infarction / ischemia is done by using ECG changes to determine the affected area and subsequently the occluded coronary artery (culprit).