★ The Cardiovascular System OCR A-level Quiz
Intrinsic electrical impulses start at which of the following locations?
A. AV Node
B. Bundle of His
C. Purkinje fibers
D. SA Node
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Which of the following describes the network that distributes electrical impulses throughout the heart?
A. cardiac conduction system
B. electrocardiogram
C. HECO
D. action potential network
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