Trachea

Definition

A part of the respiratory system in insects and other arthropods, consisting of a network of tiny tubes that transport oxygen directly to tissues.

Etymology

From Greek 'trachys', meaning 'rough', referring to the rough texture of the windpipe in vertebrates.

Example

The trachea of an insect plays a critical role in its ability to breathe by delivering oxygen directly to its tissues.

Synonyms

• Air tubes
• Respiratory tubes

Related Terms

• Spiracle
• Tracheole
• Respiration
• Oxygen transport

Usage Notes

In insects, the tracheae open to the exterior through small openings called spiracles, allowing air to diffuse directly into the body.