Grasshoppers have small holes on the sides of their bodies.
These holes are called spiracles , each hole leads to a large tube called a trachea . The large tubes divide into small tubes, which in turn, divide into still smaller tubes that branch out to all the cells of the body. This system of tubes carries oxygen to the cells and takes away the carbon dioxide. Yes, they do. A grasshoppers blood does not flow through veins and arteries as our does.