Quiz: Functions Of The Heart! Trivia

43 Questions | Total Attempts: 1511

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Quiz: Functions Of The Heart! Trivia - Quiz

Quiz: functions of the heart trivia. The heart is one of the major organs in the body; it is tasked with ensuring blood and oxygen is transported throughout the body. Do you know the different part of the heart and their functions? What can happen to them so that they don’t meet their functions? The quiz below is designed for a medical practitioner to see how much they know about the heart and some disorders affecting its different parts.


Questions and Answers
  • 1. 
    Systole and diastole describe the function of the
    • A. 

      Pericardium

    • B. 

      SA node

    • C. 

      Myocardium

    • D. 

      Mediastinum

  • 2. 
    During atrial systole, the
    • A. 

      AV valves are closed

    • B. 

      Ventricles are relaxed

    • C. 

      Ventricles are in systole

    • D. 

      Semilunar valves are open

  • 3. 
    What happens during ventricular diastole?
    • A. 

      The ventricles are filling with blood

    • B. 

      All semilunar valves are open

    • C. 

      Both AV valves are closed

    • D. 

      Blood is pumped to the lungs and systemic circulation

  • 4. 
    Which of the following is the most likely consequence of a very rapid heart rate?
    • A. 

      Decreased ventricular filling (with blood)

    • B. 

      Failure of the AV valves to open

    • C. 

      Failure of the SA node to fire

    • D. 

      Failure of the cardiac impulse to enter the His-Purkinje system

  • 5. 
    Which of the following does not happen to a ventricle?
    • A. 

      Activation of the beta1 adrenergic receptors

    • B. 

      Discharge of sympathetic nerves

    • C. 

      Discharge of the vagal nerve

    • D. 

      Binding of norepinephrine to its receptor

  • 6. 
    Which of the following is most likely to relieve an anxiety-induced tachycardia?
    • A. 

      Vagolytic drug

    • B. 

      Beta1 adrenergic agonist

    • C. 

      Sympathomimetic

    • D. 

      Beta1 adrenergic blocker

  • 7. 
    Which of the following is responsible for the Starling effect?
    • A. 

      Sympathetic nerve firing

    • B. 

      Vagal discharge

    • C. 

      Activation of the beta1 adrenergic receptors

    • D. 

      End diastolic volume (EDV)

  • 8. 
    Which of the following is most likely to increase stroke volume?
    • A. 

      A (+) inotrpic drug

    • B. 

      A vagolytic drug

    • C. 

      A (-) chronotropic drug

    • D. 

      A beta1 adrenergic blocker

  • 9. 
    Which of the following is most likely to increase ejection fraction?
    • A. 

      Activation of beta1 adrenergic receptors

    • B. 

      Vagal discharge

    • C. 

      Blockade of beta1 adrenergic receptors

    • D. 

      Blockade of the muscarinic receptors

  • 10. 
    Which of the following is the same as the end dialectic volume?
    • A. 

      Stroke volume

    • B. 

      Cardiac output

    • C. 

      Preload

    • D. 

      Cardiac reserve

  • 11. 
    What terms refer to the amount of blood pumped by the ventricle in one boat?
    • A. 

      Cardiac output

    • B. 

      Blood volume

    • C. 

      Hematocrit

    • D. 

      Stroke volume

  • 12. 
    Which term refers to the amount of blood pumped by the heart in one minute?
    • A. 

      Stroke volume

    • B. 

      Cardiac output

    • C. 

      Starling's law of the heart

    • D. 

      Inotropic effect

  • 13. 
    Sympathetic nerve stimulation of the myocardium.
    • A. 

      Causes a (+) inotropic effect

    • B. 

      Decreases cardiac output

    • C. 

      Decreases heart rate

    • D. 

      Decreases stroke volume

  • 14. 
    Excess vagal stimulation to the SA node is most likely to cause
    • A. 

      Hypertension

    • B. 

      Bradycardia

    • C. 

      Tachycardia

    • D. 

      Anemia

  • 15. 
    Which of the following is descriptive of the vagus nerve?
    • A. 

      "fight or flight"

    • B. 

      Parasympathetic

    • C. 

      Sympathetic

    • D. 

      Adrenergic

  • 16. 
    Heart rate and stroke volume determine__________
    • A. 

      Hemotocrit

    • B. 

      Total blood volume

    • C. 

      Cardiac output

    • D. 

      The size of the heart valves

  • 17. 
    A drug (i.e., atropine) that blocks the vagus nerve.
    • A. 

      Stops the heart

    • B. 

      Increases the heart rate

    • C. 

      Decreases cardiac output

    • D. 

      Decreases stroke volume

  • 18. 
    Activation of the muscarinic receptors by acetylcholine.
    • A. 

      Increases myocardial contractile force

    • B. 

      Causes a (+) chronotropic effect

    • C. 

      Increases cardiac output

    • D. 

      Slows heart rate

  • 19. 
    Decreased blood flow through the coronary arteries is most likely to cause
    • A. 

      Valve damage

    • B. 

      Pulmonary edema

    • C. 

      Angina pectoris

    • D. 

      Bradycardia

  • 20. 
    This term refers to a heart rate of fewer that 60 beats/min
    • A. 

      Bradycardia

    • B. 

      Heart block

    • C. 

      Fight-or-flight response

    • D. 

      Tachycardia

  • 21. 
    Vagal stimulation on the heart
    • A. 

      Increases the force of myocardial contraction

    • B. 

      Increases the amount of blood that flows into the heart from the vena cava

    • C. 

      Causes tachycardia

    • D. 

      Slows the heart rate

  • 22. 
    Which of the following most accurately describes the vagus nerve?
    • A. 

      "fight or flight"

    • B. 

      Norepinephrine

    • C. 

      Parasympathetic

    • D. 

      Causes tachycardia

  • 23. 
    What is the term for the sequence of events that occur during one heartbeat?
    • A. 

      Stroke volume

    • B. 

      Cardiac output

    • C. 

      Cardiac cycle

    • D. 

      Systole

  • 24. 
    Which of the following contains 70ml?
    • A. 

      The cardiac output

    • B. 

      The volume of a ventricle

    • C. 

      An average stroke volume

    • D. 

      The amount of blood that flows through the pulmonary capillaries in one minute

  • 25. 
    Which of the following refers to a positive inotropic effect?
    • A. 

      Heart block

    • B. 

      A slow heart rate

    • C. 

      A rapid heartbeat

    • D. 

      An increased myocardial contractile force

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