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6. When the ventricles contract...

  • The semilunar valves fill with blood and are closed
  • The atrioventricular valves fill with blood and are closed
  • Pressure causes the atrioventricular valves to open

7. What is the role of the septum?

  • To keep the blood moving through the heart
  • To separate oxygenated and deoxygenated blood
  • To create pressure in the heart
  • To keep te heart together

8. The right atrium needs to create a lot of pressure

  • False
  • True

9. Tendinous chords attach the valves to the walls of the ventricle

  • True
  • False

10. When the atria and ventricles are relaxing, blood flows into the heart, this is called

  • Diastole
  • Systole

11. Which is the correct order for the cardic cycle?

  • Diastole, Atrial Systole, Ventricular Systole
  • Atrial Systole, Diastole, Ventricular Systole

12. According to the OCR textbook, the first sound of the heart "lub" is made by...

  • The atrioventricular valves closing
  • The semilunar valves closing
  • The left ventricle contracting
  • The right atrium contracting

13. During which stage of the cardiac cycle is the volume of blood inside the ventricles is at it's lowest?

  • Beginning of Ventricular systole
  • Beginning of Atrial Systole
  • End of Ventricular Systole
  • End of Atrial Systole

14. The pressure in the ventricles is always greater than that in the Aorta

  • False
  • True

15. The heart muscle is described as being...

  • Myoganic
  • Myogenial
  • Myogenic
  • Myofunctional
  • Myoginital

16. The AVN initiates a wave of excitation at regular intervals

  • False
  • True

17. Approximately how many times a minute does a wave of excitation uccur in a human?

  • 30-55
  • 80-105
  • 55-80
  • 5-30
  • 105-130

18. The specialised conducting tissue found in the septum is called...

  • Perkyne Tissue
  • Purkyme Tissue
  • Purkine Tissue
  • Purkyne Tissue
  • Perkine Tissue