peripheral nervous system

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The part of the vertebrate nervous system constituting the nerves outside the central nervous system and including the cranial nerves, spinal nerves, and sympathetic and parasympathetic nervous systems.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun neuroanatomy The part of the nervous system which is not the central nervous system.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the section of the nervous system lying outside the brain and spinal cord