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Nervous System

Nervous System

Book Title

Essays in Developmental Psychology


Randall Summers, Charles Golden, Lisa Lashley, & Erica Ailes


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There are two major subdivisions of the nervous system: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS consists of the brain and the spinal cord. Whereas the PNS consists of the nerves outside the CNS. These nerves bring sensory information to the CNS and transmit commands (i.e. motor information) from the CNS to the body. The PNS has three components, the Autonomic Nervous System (ANS), somatic nervous system (spinal nerves), and the cranial nerves.


central nervous system (CNS), nervous system, peripheral nervous system (PNS)

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This is one in a collection of essays as part of a project that began as an encyclopedia of developmental psychology coordinated by Dr. Randall Summers. However, for unforeseen reasons, the publisher was no longer in a position to publish the encyclopedia. This project was undertaken so that thousands of hours of work by psychologists would not go wasted. Enjoy these essays and feel free to cite them using the proper format.

Submit suggestions for corrections and topics to goldench@nova.edu.

Nervous System