answersLogoWhite

0

# Tracheae, which are introverted rigid appendages of the abdomen through which air passes reaching the hemolymph, entering from lateral holes in the abdomen called spiracles, which can be closed. Flying insects have big tracheal dilatations called air sacs to store much air. # Tracheolae, which are similar to tracheae but smaller. # Gills; made of branchial appendages or appendage extroflexions with thin cuticle to allow gas excanges to tracheae, tracheolae or directly to the hemolymph. Insects breathe through a complicated structure of tubes (called tracheae and tracheoles) and air sacs. Oxygen is pulled into the body through openings in their abdomens called spiracles. Once the oxygen has been pulled in, the outer most vents close and the air is forced into increasingly smaller pipes known as tubules, until it reaches the required cells. i think bugs r nice

User Avatar

Wiki User

16y ago

What else can I help you with?