Insects require oxygen just as we do, and must "exhale" carbon dioxide, a waste product of cellular respiration. Oxygen is delivered to the cells directly through respiration, and not carried by blood as in vertebrates.
Along the sides of the thorax and abdomen, a row of small openings called spiracles (8) allow the intake of oxygen from the air. Most insects have one pair of spiracles per body segment. Small flaps or valves keep the spiracle closed until there is a need for oxygen uptake and carbon dioxide discharge. When the muscles controlling the valves relax, the valves open and the insect takes a breath.
Once entering through the spiracle, oxygen travels through the tracheal trunk (8), which divides into smaller tracheal tubes. The tubes continue to divide, creating a branching network that reaches each cell in the body. Carbon dioxide released from the cell follows the same pathway back to the spiracles and out of the body.
Most of the tracheal tubes are reinforced by taenidia, ridges that run spirally around the tubes to keep them from collapsing. In some areas, however, there are no taenidia, and the tube functions as an air sac capable of storing air.
In aquatic insects, the air sacs enable them to "hold their breath" while under water. They simply store air until they surface again. Insects in dry climates may also store air and keep their spiracles closed, to prevent water in their bodies from evaporating. Some insects forcefully blow air from the air sacs and out the spiracles when threatened, making a noise loud enough to startle a potential predator or curious person.
Insects and Humans breath through their mouths and nose, breathing delivers oxygen to the body and takes away the carbon dioxide.
The respiratory system of a butterfly is open, and air enters their bodies via a small opening called a spiracle.
internal gills
tracheal
tracheal system
tracheal system
tracheal system
tracheal system
tracheal system
tracheal system
They are called spiracles, tiny tubes alongside the insect's body which allow it to receive air. Kind of like gills, but for insects. Good luck!
Tracheole (trā'kē-ōl') is one of the fine branching tubes of the trachea of an insect, which penetrates the tissues to provide oxygen ..... The trachea is a part of the respiratory system
Grasshoppers and most insects 'breath' though Spiracles located along the sides of their bodies. These openings feed a net of branching tubes that get oxygen directly into the insects body and tissues.
spiracles
Yes. All animals are composed of cells.
insects don't breathe with lungs but humans do