The left and right bundle branches are essential to keeping the heart beating properly. They deliver electrical signals to a delicate network of fibers called the Purkinje fibers located inside the ventricular walls. Purkinje fibers are specialized cells that complete cardiac actions more efficiently than any other cell in the body. They are directly responsible for synchronizing the ventricles and ensuring the heart pumps effectively. Because Purkinje fibers rely on the bundle branches for electrical signals, it's essential that the bundle branches remain intact to maintain an adequate cardiac rhythm.
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