What do we call the special tubes through which insects breathe?

Insects breathe through a branched network of tubes called tracheae that open out onto the chest and abdomen. Oxygen is pulled into the body through openings in their abdomens called spiracles. Once the oxygen has been pulled in, the outermost vents close and the air is forced into increasingly smaller pipes known as tubules, until it reaches the required cells. Lungs are a pair of large organs in our chest and are a part of our respiratory system. All vertebrate animals, which live on land, have lungs.