Which of the following best represent the correct sequence in the transmission of electrical signals throughout the heart?
1. Atrioventricular node
2. Atrioventricular bundle
3. Sinoatrial node
4. Left and Right bundle branches
5. Purkinje fibers
6. internodal pathway
a. 3→6→1→2→4→5
b. 1→6→3→2→4→5
c. 3→6→1→4→2→5
d. 3→6→1→5→4→2
