MICROANATOMY

Detailed explanation-1: -Tracheae connect with the atmosphere through openings called spiracles, which usually have closable valves. Some insects, including grasshoppers, have air sacs that are enlarged tracheae lacking the normal exocuticle and taenidia and are hypothesized to act as bellows to aid convective airflow (for review see Refs.

Detailed explanation-2: -They use holes called spiracles and air sacs to breathe.

Detailed explanation-3: -The experiment illustrated (first performed by the insect physiologist Gottfried Fraenkel) shows that there is a one-way flow of air through the grasshopper. The liquid seals in the tubing move to the right as air enters the spiracles in the thorax and is discharged through the spiracles in the abdomen.

Detailed explanation-4: -In the tracheal system, the respiration process in an organism is carried by air tubes or trachea. The tracheal openings spiracles are present on the side of the body of the organism. It is through the spiracles that the oxygen and carbon dioxide gas is circulated throughout the body.

Detailed explanation-5: -The tube that connects the airway to the lungs is called the trachea, which is made of cartilage rings. These are flexible, and allow smooth transition of air. They are adapted by having tiny cilia, which are like tiny hairs that trap dust and woft it upward the respiratory tract, preventing dust entering the lungs.