Which term describes a cluster of neuron cell bodies in the peripheral nervous system?

Which term describes a cluster of neuron cell bodies in the peripheral nervous system?

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

Answer: (A)

In the peripheral nervous system, neuron cell bodies are grouped into structures called ganglia. This distinguishes them from the central nervous system, where neuron cell bodies form nuclei or are organized in the cortex, and from tracts, which are bundles of axons. A classic example is the dorsal root ganglia along the spinal nerves, where sensory neuron cell bodies reside. The plural form is ganglia, while a single cluster is a ganglion.

In the peripheral nervous system, neuron cell bodies are grouped into structures called ganglia. This distinguishes them from the central nervous system, where neuron cell bodies form nuclei or are organized in the cortex, and from tracts, which are bundles of axons. A classic example is the dorsal root ganglia along the spinal nerves, where sensory neuron cell bodies reside. The plural form is ganglia, while a single cluster is a ganglion.