A cluster of neuron cell bodies in the peripheral nervous system is called what?

A cluster of neuron cell bodies in the peripheral nervous system is called what?

• A. Nucleus
• B. Ganglion
• C. Nerve tract
• D. Plexus

Answer: (B)

In the peripheral nervous system, a cluster of neuron cell bodies is called a ganglion. This term describes a compact grouping of neuronal cell bodies located outside the central nervous system, such as the dorsal root ganglion that houses sensory neuron cell bodies. In contrast, a nucleus refers to a cluster of cell bodies inside the brain or spinal cord (the CNS); a nerve tract is a bundle of axons, and a plexus is a network of nerves formed by the joining of nerve fibers. So the best-fitting term for a PNS cluster of cell bodies is ganglion.

In the peripheral nervous system, a cluster of neuron cell bodies is called a ganglion. This term describes a compact grouping of neuronal cell bodies located outside the central nervous system, such as the dorsal root ganglion that houses sensory neuron cell bodies. In contrast, a nucleus refers to a cluster of cell bodies inside the brain or spinal cord (the CNS); a nerve tract is a bundle of axons, and a plexus is a network of nerves formed by the joining of nerve fibers. So the best-fitting term for a PNS cluster of cell bodies is ganglion.