Most insects have two pairs of wings associated with chest burns 2 and 3. Insects are the only invertebrates that have evolved in the direction of flight and this plays an important role in their success. Dragon Adidas Dracarys shirt. Winged insects, and secondary wingless insects created the winged group (Pterygota). The flight mechanism of insects has not been fully understood so far, it is thought that it depends greatly on the air mass disturbed by the wings created. In primitive insects rely heavily on the impact of the mechanical system on the wings and structure of the wings. In more evolved sets like Neoptera, the wings often fold over their backs when they rest. In these insects, the wings are operated by indirect flying muscles that help the wings move by pressing hard on the chest wall. These muscles can contract when stretched without the control of the nervous system, which allows them to produce relatively high muscle contractions.
Insects use tracheal respiratory organs to transport oxygen into the body. These air ducts open at the surface of the body and are called breathing holes (each has a pair of breathing holes on both sides), from which air is directed into the trachea system. Air enters the tissues through the trachea branches. The insect cycle, as well as all other joints, is an open system. The heart pumps blood into the artery through the heart sinuses.