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Questions and Answers
During which phase of the cardiac cycle does the heart fill with blood?
During which phase of the cardiac cycle does the heart fill with blood?
- Contraction (systole)
- Relaxation (diastole) (correct)
- Atrio ventrical bundle
- Action potential insarawa
Where is the sinoatrial node located?
Where is the sinoatrial node located?
- Near the opening of the superior vena cava
- In the ventricles
- In the superior-lateral wall of the right atrium (correct)
- In the A-V bundle
What is the main function of the atria in the cardiac cycle?
What is the main function of the atria in the cardiac cycle?
- To contract during systole
- To generate action potential
- To act as primer pumps for the ventricles (correct)
- To delay the passage of cardiac impulse
What occurs during systole in the cardiac cycle?
What occurs during systole in the cardiac cycle?
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Which structure conveys venous blood from the upper half of the body to the right atrium?
Which structure conveys venous blood from the upper half of the body to the right atrium?
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What initiates each cardiac cycle by generating an action potential in the sinoatrial node?
What initiates each cardiac cycle by generating an action potential in the sinoatrial node?
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What is the function of allowing a delay of more than 0.1 second for the passage of cardiac impulse from atria to ventricles?
What is the function of allowing a delay of more than 0.1 second for the passage of cardiac impulse from atria to ventricles?
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