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Part 2 cardiac anatomy MCQs

 


  1. Which layer of the heart is responsible for contraction?
    A. Endocardium
    B. Myocardium
    C. Epicardium
    D. Pericardium
  2. The right coronary artery primarily supplies which structure?
    A. Left ventricle
    B. Right ventricle
    C. Left atrium
    D. Pulmonary trunk
  3. The fossa ovalis is located in the:
    A. Right atrium
    B. Left atrium
    C. Right ventricle
    D. Left ventricle
  4. The aortic valve opens during which phase of the cardiac cycle?
    A. Atrial systole
    B. Ventricular systole
    C. Atrial diastole
    D. Ventricular diastole
  5. The sinoatrial node receives its blood supply mainly from the:
    A. Left coronary artery
    B. Right coronary artery
    C. Anterior interventricular artery
    D. Circumflex artery
  6. The pulmonary trunk divides into right and left pulmonary arteries at which level?
    A. T1 vertebra
    B. T4–T5 level
    C. Sternal angle
    D. Aortic opening
  7. The ligamentum arteriosum connects the:
    A. Aorta and left atrium
    B. Pulmonary trunk and aortic arch
    C. Right ventricle and pulmonary artery
    D. Superior vena cava and aorta
  8. The moderator band is found in the:
    A. Left ventricle
    B. Right atrium
    C. Right ventricle
    D. Left atrium
  9. The pericardial cavity contains:
    A. Blood
    B. Serous fluid
    C. Air
    D. Lymph
  10. The apex of the heart is formed mainly by the:
    A. Right ventricle
    B. Left ventricle
    C. Right atrium
    D. Left atrium


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