By regional anatomy, the nervous system is divided into the central nervous system and the peripheral nervous system.
Regional neuroanatomy examines the spatial relations between brain structures within a portion of the nervous system. Regional neuroanatomy defines the major brain divisions as well as local, neighborhood relationships within the divisions.
The central nervous system (CNS) consists of the brain and spinal cord that are surrounded and protected by the cranium and vertebral bones, respectively,
The peripheral nervous system (PNS) located outside of the CNS and consists of cranial, spinal, and peripheral nerves that conduct information to (afferent or sensory) and from (efferent or motor) the CNS.
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