dots logo Chapter 8 - Cardiovascular System

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