Special bundles of unique tissue in the heart transmit and coordinate electrical impulses to stimulate the heart to beat
Based on this information, which is the correct sequence of steps for the path of an electrical impulse through the conduction system of the heart?
1 . Purkinje fibers to muscles of ventricles
2 . Bundle of His (AV bundle)
3 . SA (sinoatrial) node
4 . AV (atrioventricular) node
5 . Right and left bundle branches
A) 1, 2, 3, 4, 5
B) 2, 3, 5, 1, 4
C) 3, 4, 2, 5, 1
D) 4, 5, 3, 1, 2
C
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Conduction System of the Heart: SA (sinoatrial) node (pacemaker); AV (atrioventricular) node; bundle of His (AV bundle); right and left bundle branches; Purkinje fibers to muscles of ventricles.
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