Nerve Information



The nerve is a two way street carrying information from its origin (spinal cord) to its destination (extremity, such as leg or arm) and from its destination to its origin (spinal cord). The nerve is essentially a telephone cable with fibers inside carrying specific information, (red and black lines in the diagram above). Specific information includes skin sensation, muscle movement, atrophy, reflex, pain, and temperature sensation. If a nerve is compressed, some or all these functions may be interrupted.