Question

question
which component of the conducting system of the heart slows the electrical impulse when it arrives from the internodal pathways?
answer
atrioventricular (av) node
sinoatrial (sa) node
moderator band
av bundle
purkinje fibers

Explanation:

The atrioventricular (AV) node is responsible for slowing the electrical impulse that arrives from the internodal pathways. This delay allows the atria to contract and empty their blood into the ventricles before the ventricles contract. The sinoatrial (SA) node is the pacemaker of the heart, initiating the electrical impulse. The moderator band is a structure in the right ventricle that contains part of the conduction system but does not slow the impulse. The AV bundle (bundle of His) and Purkinje fibers are involved in conducting the impulse rapidly to the ventricles, not in slowing it.

Answer:

Atrioventricular (AV) node