A&p 2 The Heart

86 Questions | Total Attempts: 1988

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AP Quizzes & Trivia

Glands, heart, vessels


Questions and Answers
  • 1. 
    Damage to the__________ is referred to as heart block
    • A. 

      SA node

    • B. 

      AV valves

    • C. 

      AV bundles

    • D. 

      AV node

  • 2. 
    Normal heart sounds are caused by which of the following events?
    • A. 

      Excitation of the SA node

    • B. 

      Closure of the heart valves

    • C. 

      Friction of blood against the chamber walls

    • D. 

      Opening and closing of the heart valves

  • 3. 
    The p wave of a normal electrocardiogram indicates_____________
    • A. 

      Ventricular repolarization

    • B. 

      Ventricular depolarization

    • C. 

      Atrial repolarization

    • D. 

      Atrial depolarization

  • 4. 
    Which of the following is not an age-related change affecting the heart?
    • A. 

      Atherosclerosis

    • B. 

      Decline in cardiac reserve

    • C. 

      Fibrosis of cardiac muscle

    • D. 

      Thinning of the valve flaps

  • 5. 
    Which of the following is not part of the conduction system of the heart?
    • A. 

      AV node

    • B. 

      Bundle of His

    • C. 

      AV valve

    • D. 

      SA node

  • 6. 
    Blood within the pulmonary veins returns to the
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Right ventricle

    • D. 

      Left ventricle

  • 7. 
    The left ventricular wall of the heart is thicker than the right wall in order to
    • A. 

      Acoommodate a greater volume of blood

    • B. 

      Expand the thracic cage during diastole

    • C. 

      Pump blood with greater pressure

    • D. 

      Pump blood through a smaller valve

  • 8. 
    Small muscle masses attached to the chordae tendineae are the
    • A. 

      Trabeculae carneae

    • B. 

      Pectinate muscles

    • C. 

      Papillary muscles

    • D. 

      Venae cavae

  • 9. 
    Which of the events below does not occur when the semilunar valves are open?
    • A. 

      Ventricles are in diastole

    • B. 

      Blood enters pulmonary artieries and the aorta

    • C. 

      Av valves are closed

    • D. 

      Ventricles are in systole

  • 10. 
    The term for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is
    • A. 

      Ischemia

    • B. 

      Pericarditis

    • C. 

      Myocardial infarct

    • D. 

      Angina pectoris

  • 11. 
    To auscultate the aortic semilunar valve, you would place your stethoscope in the
    • A. 

      Second intercostal space to the right of the sternum

    • B. 

      Second intercostal space to the left of the sternum

    • C. 

      Fifth intercostal space inferior to the left nipple

    • D. 

      Fifth right intercostal space

  • 12. 
    The source of blood carried to capillaries in the myocardium would be the
    • A. 

      Coronary sinus

    • B. 

      Fossa ovalis

    • C. 

      Coronary arteries

    • D. 

      Coronary veins

  • 13. 
    The fact that the left ventricle of the heart is thicker than the right ventricle reveals that it
    • A. 

      Pumps a greater volume of blood

    • B. 

      Pumps blood against a greater resistance

    • C. 

      Expands the thoracic cage

    • D. 

      Sends blood through a smaller valve

  • 14. 
    Hemrrhage with a large loss of blood causes
    • A. 

      A lowering of blood pressure due to change in cardiac output

    • B. 

      A rise in blood pressure due to change in cardiac output

    • C. 

      No change in blood pressure but a slower heart rate

    • D. 

      No change in blood pressure but a change in respiration

  • 15. 
    If cardiac muscle is deprived of its normal blood supply, damage would primarily result from
    • A. 

      Decreased delivery of oxygen

    • B. 

      A decrease in the number of available mitochondria for energy production

    • C. 

      A lack of nutrients to feed into metabolic pathways

    • D. 

      An inadequate supply of lactic acid

  • 16. 
    If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells
    • A. 

      It would be much longer before cardiac cells could respond to a second stimulation

    • B. 

      Contractions would last as long as the refractory period

    • C. 

      Tetanic contractions might occur, which would stop the hearts pumping action

    • D. 

      It would be less than 1 2 ms

  • 17. 
    Norepinephrine acts on the heart by
    • A. 

      Decreasing heart contractility

    • B. 

      Causing a decrease in stroke volume

    • C. 

      Blocking the action of calcium

    • D. 

      Causing threshold to be reached more quickly

  • 18. 
    If the vagal nerves to the heart were cut, the result would be that
    • A. 

      The heart would stop, since the vagal nerves trigger the heart to contract

    • B. 

      The heart rate would increase by about 25 beats per minute

    • C. 

      The av node would become the pacemaker of the heart

    • D. 

      Parasympathetic stimulation would increase, causing a decrease in heart rate

  • 19. 
    Foramen ovale
    • A. 

      Connects the two atria in the fetal heart

    • B. 

      Is a condition in which the heart valves do not completley close

    • C. 

      Is a shallow depression in the intreventricular septum

    • D. 

      Is a connection between the pulmonary trunk and the aorta in the fetus

  • 20. 
    Which vessel of the heart recieves blood during right ventricular systole?
    • A. 

      Venae cavae

    • B. 

      Pulmonary trunk

    • C. 

      Aorta

    • D. 

      Pulmonary veins

  • 21. 
    Which of these vessels receives blood during ventricular systole?
    • A. 

      Aorta only

    • B. 

      Pulmonary arteries only

    • C. 

      Pulmonary veins only

    • D. 

      Both aorta and pulmonary trunk

  • 22. 
    The tricuspid valve is closed
    • A. 

      While the ventricle is in diastole

    • B. 

      When the ventricle is in systole

    • C. 

      While the atrium is contracting

    • D. 

      By the movement of blood from the atrium to ventricle

  • 23. 
    Which of the following factors does not influence heart rate
    • A. 

      Skin color

    • B. 

      Age

    • C. 

      Gender

    • D. 

      Body temperature

  • 24. 
    When viewing a dissected heart, it is easy to visually discern the right and left ventricles by
    • A. 

      Tracing out where the auricles connect

    • B. 

      Noticing the thickness of the venricle walls

    • C. 

      Locating the apex

    • D. 

      Finding the papillary muscles

  • 25. 
    Select the correct statement about the heart valves
    • A. 

      The mitral valve seperates the right atrium from the right ventricle

    • B. 

      The tricuspid valve divides the left atrium from the left ventricle

    • C. 

      Aortic and pulmonary valves control the flow of blood into the heart

    • D. 

      The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricle contaction does not occur

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