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The Role of Nerves and Ganglia in the Peripheral Nervous System
Chapter 13, Problem 39(choose chapter or problem)
Why are ganglia and nerves not surrounded by protective structures like the meninges of the CNS?
Questions & Answers
QUESTION:
Why are ganglia and nerves not surrounded by protective structures like the meninges of the CNS?
ANSWER:Step 1 of 2
Nerves and ganglia come under the head of the Peripheral nervous system (PNS). Ganglion (plural-ganglia) is the cluster of neuron cell bodies found at the peripheral locations. Based on their primary function, ganglia can be said to be of two types: sensory and autonomic.
The dorsal root ganglion is an example of sensory ganglion. The cranial nerve ganglion is another sensory ganglion type. The cranium houses the roots of the cranial nerves, and the ganglia are outside the skull. On the other hand, sympathetic chain ganglia and terminal ganglia are types of autonomic ganglia.
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The Role of Nerves and Ganglia in the Peripheral Nervous System
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Explore the critical components of the Peripheral Nervous System (PNS), including nerves and ganglia. Understand the distinction between sensory and autonomic ganglia and the composition of nerves' layers. Learn why nerves and ganglia lack the protective meninges found in the CNS and how they facilitate essential signal transmission within the body.