SISTOL DAN DIASTOL

QUESTIONS:-

• 1. 
  What is the definition of the Cardiac Cycle?
  • A. 
    Cardiac Cycle refers to the sequence of events that occur during one complete heartbeat
  • B. 
    The contraction of the atria
  • C. 
    The contraction and relaxation of the ventricles
  • D. 
    The circulation of blood in the heart
• 2. 
  Name the three phases of the Cardiac Cycle in order
  • A. 
    Early Diastole, Mid-to-Late Diastole, Ventricular Systole
  • B. 
    Ventricular Systole, Mid-to-Late Diastole, Early Diastole
  • C. 
    Mid-to-Late Diastole, Ventricular Systole, Early Diastole
  • D. 
    Early Diastole, Ventricular Systole, Mid-to-Late Diastole
• 3. 
  During the Mid-to-Late Diastole, the heart is in complete relaxation and the pressure in the heart is low.
  • A. 
    True
  • B. 
    False
• 4. 
  During the Mid-to-Late Diastole, the ...................valves are closed.
• 5. 
  During the Ventricular Systole, the pressure rapidly increases in the ventricles forcing the  .............. valves closed.
• 6. 
  When is the ventricular blood volume higher?
  • A. 
    At the beginning of the systole
  • B. 
    At the beginning of the diastole
  • C. 
    During Mid-to-Late Diastole
  • D. 
    None of the above
• 7. 
  Which of the following is NOT true for ventricular systole?
  • A. 
    The ventricles contract
  • B. 
    The atrioventricular valves close
  • C. 
    The semilunar valves open
  • D. 
    The ventricles relax
• 8. 
  The semilunar valves close during:
  • A. 
    Ventricular systole
  • B. 
    Ventricular diastole
  • C. 
    Atrial systole
  • D. 
    Atrial diastole
• 9. 
  The atrioventricular valves open during: 
  • A. 
    Ventricular systole
  • B. 
    Ventricular diastole
  • C. 
    Atrial diastole
  • D. 
    Both atrial and ventricular systole
• 10. 
  Atrial contraction accounts for most of the ventricular filling
  • A. 
    True
  • B. 
    False
• 11. 
  The ventricles begin to fill during ventricular diastole.
  • A. 
    True
  • B. 
    False
• 12. 
  The two distinct heart sounds during the cardiac cycle :
  • A. The first heart beat

  • A.  Select a Match lub dup 
  • B. The second heart beat

  • B.  Select a Match lub dup 
• 13. 
  An average heartbeat, or cardiac cycle, lasts approximately:
  • A. 
    8.0 seconds
  • B. 
    80 seconds
  • C. 
    0.80 seconds
  • D. 
    0.0008 seconds
• 14. 
  During Early Diastole, the ventricles are relaxed, the ............ valves snap shut to prevent back flow. 
• 15. 
  A heartbeat, or cardiac cycle, is one sequence of contraction and relaxation of the heart chambers. 
  • A. 
    The contraction phase is called diastole while the relaxation phase is called systole
  • B. 
    Systole refers to both the contraction and the relaxation phase
  • C. 
    The contraction phase is called systole while the relaxation phase is called diastole
  • D. 
    Diastole refers to both the contraction and the relaxation phase