MDCAT Biology MCQ #2122

During a coronary artery occlusion, the area of heart muscle most vulnerable to ischemia is the?

MDCAT Biology MCQ #2122

  1. Question 1

    Q1. During a coronary artery occlusion, the area of heart muscle most vulnerable to ischemia is the?

    • A) Subepicardium
    • B) Subendocardium
    • C) Myocardium
    • D) Epicardium

    Answer: Subendocardium

    Explanation: Subendocardium is most vulnerable due to higher metabolic demand and lower perfusion pressure.