What is the electrical pathway of the heart, in order? NOTE - this includes pacemaker and conduction components.
a) SA node, internodal pathways, AV node, bundle of His, bundle branches
b) SA node, internodal pathways, AV node, bundle branches, bundle of His
c) AV node, internodal pathways, SA node, bundle of His, bundle branches
d) AV node, internodal pathways, SA node, bundle of His, bundle branches
