Giant Axons

Definition

Very large neurons running through the nerve cord of some arthropods, including insects, and connecting by electrical synapses rather than chemical ones. Giant axons promote the rapid transmission of impulses.

Etymology

From the Latin 'giganticus' meaning 'giant' and 'axon', the term for a nerve fiber.

Example

Giant axons allow for rapid escape responses in insects like cockroaches.

Related Terms

• Synapses
• Nervous System
• Insects

Usage Notes

Giant axons are typically found in the ventral nerve cord of insects and are involved in fast, stereotyped motor responses.