Biology · Nodes of the Heart
What is the primary function of the Atrioventricular (AV) node during the cardiac cycle?
- 1To block all electrical signals coming from the sinoatrial node permanently
- 2To directly pump blood into the aorta and pulmonary trunk
- 3To receive the cardiac impulse from the atria and delay it briefly before transmitting it to the ventricles✓
- 4To secrete hormones that regulate systemic blood pressure
Correct answer
To receive the cardiac impulse from the atria and delay it briefly before transmitting it to the ventricles
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