Electrical impulses are initiated in the right atrium. Put the route that the impulses travel from the base of the heart to the apex of the heart in the correct sequence (1-4). (Enter the number of each step in the proper sequence. Do not use punctuation or spaces. Example: 1234.)
1. Bundle of His
2. Sinoatrial node
3. Purkinje fibers
4. Atrioventricular node

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The Answer of Electrical impulses are initiated in the right atrium. Put the route that the impulses travel from the base of the heart to the apex of the heart in the correct sequence (1-4). (Enter the number of each step in the proper sequence. Do not use punctuation or spaces. Example: 1234.)
1. Bundle of His
2. Sinoatrial node
3. Purkinje fibers
4. Atrioventricular node

Electrical Impulses Are Initiated in the Right Atrium