GENERAL HISTOLOGY

Detailed explanation-1: -Insects have a tracheal respiratory system in which oxygen and carbon dioxide travel primarily through air-filled tubes called tracheae. Usually the tracheal system penetrates the cuticle via closeable valves called spiracles and ends near or within the tissues in tiny tubes called tracheoles.

Detailed explanation-2: -Most insects respire through a system of tubes called tracheae that connect to the air via spiracles that can be actively opened or closed (1). Tracheal tubes form a complex network of gas-filled vessels that divide throughout the body segments, legs, and wings.

Detailed explanation-3: -For insects, respiration is separate from the circulatory system. Oxygen and carbon dioxide gases are exchanged through a network of tubes called tracheae. Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles.

Detailed explanation-4: -→What is the tracheal system in insects? The tracheal system is a network of tiny tubes that run throughout the insect’s body, providing a direct connection to the environment. The tracheal system enables the exchange of gases between the insect’s body and the environment.

Detailed explanation-5: -Insects take in Oxygen and expel Carbon Dioxide using a series of internal air tubes, the tracheae. These pass fine branches, the tracheoles, to all parts of the body.