The nervous system is divided into three subunits: the central nervous system,the spinal cord,and the peripheral nervous system.

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Quizplus · Accepted Answer

The nervous system is indeed divided into three subunits: the central nervous system (which includes the brain and spinal cord), the peripheral nervous system (which includes all the nerves outside of the brain and spinal cord), and the spinal cord (which is a part of the central nervous system but can also be considered separately due to its unique structure and functions).

The Nervous System Is Divided into Three Subunits: the Central