alleryStart learning →The AV node can transmit impulses maximally at about what rate?
A60 per minute
B220 per minute
C500 per minute
D1,000 per minute
Answer & Solution
Correct answer: B. 220 per minute
1. The AV node's transmission ceiling limits how fast the ventricles can be driven.
2. It can transmit impulses maximally at about 220 per minute.
3. This establishes the typical maximum heart rate, a favorite exam link.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 19 "The Cardiovascular System: The Heart", section 19.2 Cardiac Muscle and Electrical Activity_
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