Which term describes a cluster of neuron cell bodies within the central nervous system?

Which term describes a cluster of neuron cell bodies within the central nervous system?

• A. Nuclei
• B. Ganglia
• C. Cortex
• D. Plexus

Answer: (A)

Inside the brain and spinal cord, neuron cell bodies group into discrete gray-matter clusters called nuclei. Each nucleus is a distinct collection of somas within the CNS, connected to other regions by white-matter pathways. In contrast, ganglia are clusters of neuron cell bodies in the peripheral nervous system, the cortex is the layered outer gray matter, and a plexus is a network of nerves or vessels. So the term describing a cluster of neuron cell bodies within the CNS is nuclei (singular: nucleus).

Inside the brain and spinal cord, neuron cell bodies group into discrete gray-matter clusters called nuclei. Each nucleus is a distinct collection of somas within the CNS, connected to other regions by white-matter pathways. In contrast, ganglia are clusters of neuron cell bodies in the peripheral nervous system, the cortex is the layered outer gray matter, and a plexus is a network of nerves or vessels. So the term describing a cluster of neuron cell bodies within the CNS is nuclei (singular: nucleus).