Multiple Choice
In human anatomy, what structures make up the central nervous system (CNS)?
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12. The Central Nervous System
Introduction to the Central Nervous System
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In human anatomy, the central nervous system (CNS) consists of which two structures?
A
Brain and peripheral nerves
B
Sympathetic and parasympathetic divisions
C
Spinal cord and cranial nerves
D
Brain and spinal cord
Verified step by step guidance1
Understand the definition of the central nervous system (CNS): It is the part of the nervous system that processes information and coordinates activity throughout the body.
Recall the two main anatomical structures that make up the CNS: the brain and the spinal cord.
Differentiate the CNS from the peripheral nervous system (PNS), which includes peripheral nerves and cranial nerves outside the brain and spinal cord.
Recognize that the sympathetic and parasympathetic divisions are parts of the autonomic nervous system, which is a subdivision of the PNS, not the CNS.
Conclude that the CNS consists specifically of the brain and spinal cord, making 'Brain and spinal cord' the correct answer.
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