Ganglion

Definition

A structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber.

Etymology

From Latin 'ganglion', meaning 'a swelling'.

Example

The thoracic ganglia in insects control leg movement and receive sensory input from the legs.

Related Terms

• Neuron
• Nervous System

Usage Notes

Ganglia are found throughout the insect body and play a vital role in processing sensory information and controlling motor functions.