What are spiracles in cockroaches?

Spiracles are small external openings present on the body of a cockroach that allow air to enter and exit for respiration.

• Spiracles are located on the sides of the body—two on the thorax and eight on the abdomen.
• They connect to a network of air tubes called tracheae, which distribute oxygen directly to the body tissues.
• Each spiracle has valves that open and close to control air flow and prevent water loss.

Functions