Are they precisely the same factor? Simply put, no. Remember that nerves are found in the PNS, and are composed of bundles of nerve fibers (axons). The neurons Alternatively are merely the cells of the anxious method. Some nerve fibers (axons) and they are enveloped in myelin sheath, a lipid https://www.theorthopaedicandpainpractice.com/understanding-burning-pain-in-the-upper-right-arm-causes-symptoms-and-treatment-options/