Biology, 21.09.2019 04:30 ashtonbillups

The sequence of travel by an action potential through the heart is
1- atrioventricular node, sinoatrial node, atrioventricular bundle, bundle branches, purkinje fibers.
2- sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, purkinje fibers.
3- atrioventricular node, sinoatrial bundle, atrioventricular node, bundle branches, purkinje fibers.
4- atrioventricular bundle, atrioventricular node, sinoatrial node, bundle branches, purkinje fibers.
5- purkinje fibers, atrioventricular bundle, atrioventricular node, sinoatrial node, bundle branches.

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The sequence of travel by an action potential through the heart is
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