dots logo Chapter 8 - Cardiovascular System

  1. Blood enters the right atrium though the __________, and blood enters the left atrium though the __________?
    1. tricuspid value, mitral value
    2. pulmonary veins, vena cava
    3. vena cava, pulmonary veins
    4. mitral value, tricuspid value
  2. Excess fluid in pericardial cavity is called __________ and can lead to cardiac tamponade (restricted movement of the heart).
    1. angina pectoris
    2. pericarditis
    3. myocardial infarction
    4. coronary artery disease
  3. Order the layers of the heart from deep to superficial.
    1. pericardium (epicardium) → endocardium → myocardium
    2. endocardium → myocardium → pericardium (epicardium)
    3. pericardium (epicardium) → myocardium → endocardium
    4. myocardium → endocardium → pericardium (epicardium)
  4. Which statement about an ECG is incorrect?
    1. T wave: ventricles repolarize
    2. QRS complex: ventricles depolarize
    3. QRS complex: atria depolarize
    4. P wave: atria depolarize
  5. Which pathway represents the pulmonary circuit?
    1. right ventricle → pulmonary veins → lungs → pulmonary arteries → left atrium
    2. left ventricle → pulmonary arteries → lungs → pulmonary veins → right atrium
    3. left ventricle → pulmonary veins → lungs → pulmonary arteries → right atrium
    4. right ventricle → pulmonary arteries → lungs → pulmonary veins → left atrium
  6. Atrioventricular (AV) valves prevent backflow into the atria, and semilunar valves prevent backflow into the ventricles?
    1. true
    2. false
  7. Semilunar valves include the following which prevent backflow into the ventricles.
    1. pulmonary and aortic valves
    2. tricuspid and mitral valves
  8. The base of the heart is inferior and the apex of the heart is superior?
    1. true
    2. false
  9. These terms all refer to the same value that permits blood flow from the left atrium to the left ventrical, except?
    1. left atrioventricular valve (AV)
    2. tricuspid valve
    3. bicuspid valve
    4. mitral valve
  10. There is one pulmonary vein and one pulmonary artery?
    1. true
    2. false
  11. Which pathway represents the systemic circuit?
    1. right ventricle → systemic arteries → body → systemic veins → left atrium
    2. left ventricle → systemic arteries → body → systemic veins → right atrium
    3. left ventricle → systemic veins → body → systemic arteries → right atrium
    4. right ventricle → systemic veins → body → systemic arteries → left atrium
  12. Which statement is incorrect?
    1. blood flows from right atrium to right ventricle via the tricuspid valve
    2. blood flows from left atrium to left ventricle via the bicuspid valve
    3. right atrium receives blood from the inferior and superior vena cava
    4. right atrium receives blood from left and right pulmonary veins
  13. The right coronary artery supplies blood to all but?
    1. left atrium
    2. right ventricle
    3. left ventricle
    4. right atrium
    5. conducting system
  14. During one heartbeat, the contraction phase is __________, and the relaxation phase is __________ ?
    1. systole, diastole
    2. diastole, systole
  15. In a myocardial infarction, circulation becomes blocked in which of the following?
    1. pulmonary circuit
    2. systemic circuit
    3. coronary circulation
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