Quiz: Electrical Activity of the Heart
Pearson Edexcel Level 3 Advanced GCE in Biology A (Salters-Nuffield) (9BN0)
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Building on what you've learned about muscles and cardiac function, let's test your knowledge of the electrical activity of the heart!
Which part of the heart is responsible for initiating the electrical impulse that causes the heart to contract?
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Which of the following are true about the electrical activity of the heart? (Select all that apply)
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The {{blank0}} node is responsible for delaying the electrical impulse to ensure the {{blank1}} have time to fill with blood before contraction.
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Match the items on the left with their correct pairs on the right
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What is the main role of the Purkinje fibres in the heart?
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If the heart beats 75 times per minute, how many beats occur in an hour?
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The electrical impulse travels from the SAN to the AVN, then to the {{blank0}} and finally to the {{blank1}} fibres.
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Match the items on the left with their correct pairs on the right
What term describes the heart's ability to generate its own electrical impulses?
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Which of the following statements about the cardiac cycle are correct? (Select all that apply)
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