which of the following is true concerning the hearts conduction system?\nmultiple choice\naction potentials…
which of the following is true concerning the hearts conduction system?\nmultiple choice\naction potentials pass slowly through the atrioventricular node.\naction potentials pass slowly through the atrioventricular bundle.\naction potentials pass slowly through the subendocardial branches (purkinje fibers).\naction potentials pass slowly through the ventricle wall.\naction potentials pass slowly through the bundle branches.
Answer
Answer:
Action potentials pass slowly through the atrioventricular node.
Brief Explanations:
The atrioventricular (AV) node has a slower conduction velocity compared to other parts of the heart's conduction system. This delay allows the atria to fully contract and empty their blood into the ventricles before the ventricles start contracting. The AV bundle, subendocardial branches (Purkinje fibers), ventricle wall, and bundle branches have faster conduction velocities. The AV node's slow conduction is crucial for proper cardiac function and coordination between atrial and ventricular contractions.