Cockroaches breathe through a network of tubes that are attached to their spiracles. These spiracles are small openings on the sides of the body. They allow oxygen-rich air to rush into their tracheae. Then, this oxygen-rich air diffuses into their bodies. This process allows them to continue breathing even if their head is cut off. The air they breathe also contains carbon dioxide, which escapes through the spiracles.
Cockroaches have an efficient breathing system, similar to a fish’s gills. When they are not active, they can live for up to a week without a breath. This is due to the air-filled tubes in their bodies, called spiracles. Cockroaches can survive in water for long periods of time without getting dehydrated.
Cockroaches breathe through spiracles, which act like an opening similar to our own nostrils. The spiracles are regulated by muscular sphincters that open and close. These tubes allow cockroaches to breathe in oxygen and expel carbon dioxide.
The best way to prevent cockroaches from invading your home is to avoid them from entering your home. Cockroaches prefer a dark, moist environment and may even live in your ears. This is a particularly convenient habitat for these critters because earwax is a food source for them. Cockroaches are not normally aggressive toward humans, but if you notice a roach near your food, contact a medical professional immediately.