Anatomy of the Heart Quiz
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Questions and Answers

Which of the following is NOT a major blood vessel connected to the heart?

  • Aorta
  • Pulmonary artery
  • Brachial artery (correct)
  • Inferior vena cava

    • Which of the following is the correct order of blood flow through the heart's chambers?

  • Left atrium -> Left ventricle -> Right atrium -> Right ventricle
  • Left ventricle -> Left atrium -> Right ventricle -> Right atrium
  • Right atrium -> Right ventricle -> Left atrium -> Left ventricle
  • Right atrium -> Right ventricle -> Pulmonary circulation -> Left atrium -> Left ventricle -> Systemic circulation (correct)

    • What is the primary function of the pulmonary circulation?

  • To provide nutrients to the heart muscle
  • To regulate blood pressure throughout the body
  • To transport carbon dioxide-rich blood to the lungs for gas exchange (correct)
  • To transport oxygen-rich blood to the body's tissues

    • Which of the following is a characteristic of cardiac muscle compared to skeletal muscle?

    <p>Cardiac muscle is non-striated and involuntary</p> Signup and view all the answers

    What is the main function of the sinoatrial (SA) node in the heart's conductive system?

    <p>To generate the heart's electrical impulses</p> Signup and view all the answers

    Which of the following is a characteristic of the action potential in autorhythmic cells (pacemaker cells) of the heart?

    <p>Slow depolarization and slow repolarization</p> Signup and view all the answers

    What is the main function of the parasympathetic nervous system's innervation of the heart?

    <p>To decrease heart rate and contractility</p> Signup and view all the answers

    Which of the following EKG deflections represents the depolarization of the ventricles?

    <p>QRS complex</p> Signup and view all the answers

    What is the primary cause of angina pectoris?

    <p>Decreased blood flow to the heart muscle</p> Signup and view all the answers

    What is the primary function of the heart valves?

    <p>To prevent backflow of blood</p> Signup and view all the answers

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