Question

What would happen if the AV node failed to delay transmission of signals from the SA node? The atria and ventricles would contract at the same time The ventricles would start squeezing from the top to the bottom The AV node and the SA node would be unable to communicateNeuronal regulation of heart rate would be impaired None of the above are correct

Answer 1

Without this brief delay in the electrical impulse, the atria would not be able to finish beating—allowing the ventricles to completely fill with blood—before the ventricles themselves begin to beat

Step-by-step explanation: