How are the lungs built and what is their function? The lungs and several other structures make up the respiratory system. The main function of the lungs is to inhale air and deliver its oxygen to the red blood cells: these carry it with the bloodstream to all the cells of the body. In addition, carbon dioxide, the by product of the cellular respiratory process, is also ejected from the lungs through the emitted air. A healthy person has two lungs, a right lung and a left lung, each of which is an independent unit in terms of blood supply.Each lung enters a tube called: Bronx (in many Bronx). Bronchials are attached to the trachea tube. The bronchial that enters the lungs and leads to air splits into smaller bronchials. The walls of the final symphonies are so thin that the exchange of gases between the blood and the air is already possible within them. Continuing the final symphony is the breathing bronch that is a tube to which many bags – the lung fart – are attached to which the gases are exchanged. The rhhinaid nats are small air blisters surrounded by capillions. When the nat is filled with inhaled air, an oxygen diffusion (O2) bleats into the blood in the capillary, which is pumped by the heart into all the tissues of the body. At the same time, a diffusion of carbon dioxide (CO2) from the capillations to the air in the nadias, and from them, through the symphonies, bronchial and trachea, is emitted out through the exhalation action.