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Chapter 16: Heart

50 Questions
Heart Quizzes & Trivia

ANATOMY 2 CHAPTER 16

Questions and Answers
  • 1. 
    This layer of the heart allows it to act as a pump.
    • A. 

      Epicardium

    • B. 

      Myocardium

    • C. 

      Pericardium

    • D. 

      Endocardium

  • 2. 
    This sling-like structure supports the heart
    • A. 

      Pericardium

    • B. 

      Chordae tendinae

    • C. 

      Myocardium

    • D. 

      Endocardium

  • 3. 
    This is the hardest working cardiac chamber and therefore has the thickest myocardium.
    • A. 

      Right atrium

    • B. 

      Right ventricle

    • C. 

      Left atrium

    • D. 

      Left ventricle

  • 4. 
    The right ventricle pumps to the
    • A. 

      Right atrium

    • B. 

      Left veins

    • C. 

      Pulmonary artery

    • D. 

      Aorta

  • 5. 
    Vessel(s) that carry(ies) blood from the pulmonary capillaries to the left atrium
    • A. 

      Aorta

    • B. 

      Pulmonary artery

    • C. 

      Pulmonary veins

    • D. 

      Vena cava

  • 6. 
    • A. 

      Right ventricle

    • B. 

      Pulmonary veins

    • C. 

      Pulmonary artery

    • D. 

      Left ventricle

  • 7. 
    Blood flows from the right atrium through this atriovascular valve to the right ventricle
    • A. 

      Bicuspid

    • B. 

      Mitral

    • C. 

      Pulmonic

    • D. 

      Tricuspid

  • 8. 
    Which of the following structures "sees" unoxygenated blood?
    • A. 

      Aorta

    • B. 

      Left ventricle

    • C. 

      Pulmonary artery

    • D. 

      Pulmonary veins

  • 9. 
    Which of the following "sees" oxygenated blood?
    • A. 

      Vena cava

    • B. 

      Pulmonary veins

    • C. 

      Right atrium

    • D. 

      Pukmonic valve

  • 10. 
    Chordae tendineae are not associated with this valve
    • A. 

      Aortic

    • B. 

      Mitral

    • C. 

      Tricuspid

    • D. 

      Bicuspid

  • 11. 
    With which of the following is "lubb-dupp" associated?
    • A. 

      Myocardial contraction

    • B. 

      Ventricle depolarization

    • C. 

      Closing of heart valves

    • D. 

      Diffusion of O2 from the lungs to the blood in the pulmonary capillaries

  • 12. 
    • A. 

      Coronary arteries

    • B. 

      Pulmonary arteries

    • C. 

      Pulmonary veins

    • D. 

      Cardiac veins

  • 13. 
    Where does the cardiac action potential (cardiac impulse) normally originate?
    • A. 

      AV node

    • B. 

      Purkinje fibers

    • C. 

      Ectopic focus

    • D. 

      SA node

  • 14. 
    The pacemaker of the heart is located in the upper wall of the
    • A. 

      Right atrium

    • B. 

      Right ventricle

    • C. 

      Left atrium

    • D. 

      Left ventricle

  • 15. 
    Referring to the ECG, the P wave represents
    • A. 

      Atrial contraction

    • B. 

      Ventricular relaxation

    • C. 

      Atrial depolarization

    • D. 

      Atrial repolarization

  • 16. 
    • A. 

      Ventricular contraction

    • B. 

      Ventricular repolarization

    • C. 

      Ventricular relaxation

    • D. 

      Ventricular depolarization

  • 17. 
    This structure connects the cusps of the AV valves to the ventricles
    • A. 

      Purkinje fibers

    • B. 

      AV node

    • C. 

      Bundle of His

    • D. 

      Chordae tendinae

  • 18. 
    These conducting fibers rapidly spread the electrical signal throughout the ventricles
    • A. 

      Bundle of His

    • B. 

      Purkinje fibers

    • C. 

      SA node

    • D. 

      AV node

  • 19. 
    • A. 

      Left heart

    • B. 

      Biscupid

    • C. 

      Semilunar

    • D. 

      Chordae tendineae

  • 20. 
    All of the following are electrical terms except
    • A. 

      Sarcomere

    • B. 

      Depolarization

    • C. 

      Action potential

    • D. 

      Repolarization

  • 21. 
    • A. 

      Ventricular relaxation

    • B. 

      "lubb-dupp"

    • C. 

      Ventricular depolarization

    • D. 

      Closing of the AV valves

  • 22. 
    Which of the following semilunar valves "sees" oxygenated blood?
    • A. 

      Motral

    • B. 

      Bicuspid

    • C. 

      Aortic

    • D. 

      Pulmonic

  • 23. 
    • A. 

      Pulmonary veins

    • B. 

      Coronary arteries

    • C. 

      Pulmonary capillaries

    • D. 

      Vena cava

  • 24. 
    What event causes the pulmonic valve to open?
    • A. 

      The P wave

    • B. 

      An increase in the pressure within the right ventricle

    • C. 

      "lubb-dupp"

    • D. 

      Contraction of the chordae tendieae

  • 25. 
    Which layer of the heart has actin, myosin, and intercalated discs?
    • A. 

      Myocardium

    • B. 

      Endocardium

    • C. 

      Epicardium

    • D. 

      Pericardium

  • 26. 
    The pericardium is part of the
    • A. 

      Myocardium

    • B. 

      Diaphragm

    • C. 

      Epicardium

    • D. 

      Endocardium

  • 27. 
    The mitral and the bicuspid valves
    • A. 

      Are semilunar valves

    • B. 

      Are both located o the right side of the heart

    • C. 

      "see" only unoxygenated blood

    • D. 

      Are the same valves

  • 28. 
    The pulmonic and aortic valves
    • A. 

      Are atrioventricular valves

    • B. 

      "see" only oxygenated blood

    • C. 

      Are attached to the ventricular walls by chordae tendinae

    • D. 

      Are semilunar valves

  • 29. 
    Complete the sequence: blood flows from the pulmonary capillaries to the pulmonary veins to the left atrium to the left ventricle to the
    • A. 

      Vena cava

    • B. 

      Pulmonary artery

    • C. 

      Aorta

    • D. 

      Circle of Willis

  • 30. 
    The atrioventricular node (AV node)
    • A. 

      Is the pacemaker of the heart

    • B. 

      Is located in the upper part of the right atrium

    • C. 

      Has a rate that is normally faster than the SA node

    • D. 

      Delays the electrical signal coming from the atria into the ventricles

  • 31. 
    The purpose of this structure is to momentarily delay the spread of the signal from the atrium to the ventricles
    • A. 

      SA node

    • B. 

      Purkinje fibers

    • C. 

      Bundle of His

    • D. 

      AV node

  • 32. 
    Which of the following is an electrical event?
    • A. 

      "lubb-dupp"

    • B. 

      Actin and myosin interaction

    • C. 

      Murmur

    • D. 

      Depolarization

  • 33. 
    Which of the following is a result of ventricular contraction?
    • A. 

      The AV valves open

    • B. 

      The semilunar valves close

    • C. 

      Blood is pumped into the pulmonary artery and the aorta

    • D. 

      Blood flows back into the atria

  • 34. 
    Under what condition is blood most likely to flow "backward" (e.g., from the left ventricle back into the left atrium)?
    • A. 

      Pulmonary artery hypertension

    • B. 

      Left ventricular hypertrophy

    • C. 

      An insufficient mitral valve

    • D. 

      Pulmonary edema

  • 35. 
    What are ventricles "doing" during atrial contraction?
    • A. 

      Pumping blood into great vessels

    • B. 

      Closing their AV valves

    • C. 

      Relaxing

    • D. 

      Opening their semilunar valves

  • 36. 
    The Purkinje Fibers
    • A. 

      Open valves

    • B. 

      Pull on cusps of the valves

    • C. 

      Conduct electrical signals throughout the ventricles

    • D. 

      Close valves

  • 37. 
    Which cavity first receives unoxygenated blood from the vena cava?
    • A. 

      Right ventricle

    • B. 

      Left atrium

    • C. 

      Left ventricle

    • D. 

      Right atrium

  • 38. 
    What is the name of the valve that prevents backflow of blood into the right atrium when the right ventricle contracts?
    • A. 

      Mitral valve

    • B. 

      Pulmonic valve

    • C. 

      Semilunar valve

    • D. 

      Tricuspid valve

  • 39. 
    What is the case of the heart sounds "lubb-dupp"?
    • A. 

      Closing of the heart valves

    • B. 

      Flow of blood through the coronary arteries

    • C. 

      The electrical signal as it moves through the AV node

    • D. 

      The firing of the autotomic nerves to the SA node

  • 40. 
    Which of the following is not true of the heart?
    • A. 

      The heart is located within the medistinum

    • B. 

      The apex is located left of the sternal midline at the level of the fifth intercostal space.

    • C. 

      The base of the heart is located at the level of the second rib

    • D. 

      The pericardium is composed of actin and myosin

  • 41. 
    Which of the following is least descriptive of the myocardium?
    • A. 

      Cardiac muscle, composed of actin and myosin arranged in sarcomeres

    • B. 

      Thicker in the ventricles than the atria

    • C. 

      Thicker in the left ventricle than the right ventricle

    • D. 

      Thicker in the left atrium than the right ventricle

  • 42. 
    Which of the following is a function of a valve?
    • A. 

      Regulates the direction of the flow of blood through the heart

    • B. 

      Regulates the amount of oxygen bound to hemoglobin

    • C. 

      Regulates heart rate

    • D. 

      Directs the movement of the cardiac impulse

  • 43. 
    Which of the following is true of the structures of the electrical conduction system?
    • A. 

      The AV valve is the pacemaker

    • B. 

      In normal sinus rhythm, the electrical signal arises within the SA node

    • C. 

      The His-Purkinje system spreads the electrical system from the right atrium to the left atrium

    • D. 

      The purpose of the AV node is to increase the speed at which the cardiac impulse moves from the atria to the ventricles

  • 44. 
    Which of the following is least true of the aortic valve?
    • A. 

      It is also called the left semilunar valve

    • B. 

      It "sees" oxygenated blood

    • C. 

      Blood flows from the ventricle through this valve into the pulmonary artery

    • D. 

      An incompetent aortic valve allows blood to leak from the aorta back into the left ventricle

  • 45. 
    An accumulation of excess fluid in the pericardial space
    • A. 

      Causes external compression of the heart

    • B. 

      Depresses the SA node, thereby eliminating pacemaker activity

    • C. 

      Causes valvular stenosis

    • D. 

      Causes a left-to-right shunt

  • 46. 
    A hole in the interventricular septum causes
    • A. 

      A right-to-left shunt

    • B. 

      Extreme cyanosis

    • C. 

      Blood to shunt from the left ventricle to the right ventricle

    • D. 

      Blood to shunt from the left ventricle to the pulmonary artery

  • 47. 
    Which structure "sees" oxygenated blood
    • A. 

      Tricuspid valve

    • B. 

      Pulmonary artery

    • C. 

      Pulmonary veins

    • D. 

      Right semilunar valve

  • 48. 
    Which group is incorrect?
    • A. 

      Semilunar valves: pulmoni, aortic

    • B. 

      Atrioventricular valves: tricuspid, bicuspid, mitral

    • C. 

      Structures that carry oxygenated blood: pulmonary veins, left ventricle, aorta

    • D. 

      Structures that carry unoxygenated blood: right ventricle, venae cavae, pulmonary veins

  • 49. 
    Which group is incorrect?
    • A. 

      Semilunar valves: pulmoni, aortic

    • B. 

      Structures that carry oxygenated blood: pulmonary veins, left ventricle, aorta

    • C. 

      Layers of the heart: epicardium, myocardium, endocardium

    • D. 

      Abnormal heart rates: tachycardia, bradycardia, normal sinus rhythm

  • 50. 
    Which group is incorrect?
    • A. 

      Atrioventricular valves: tricuspid, bicuspid, mitral

    • B. 

      Layers of the heart: epicardium, myocardium, endocardium

    • C. 

      Abnormal heart rates: tachycardia, bradycardia

    • D. 

      Parts of the conduction system: SA node, AV node, bundle of His, Purkinje fibers, medulla oblongata

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