THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Your lungs are on each side of your heart, inside your chest cavity. They are the main organs of the respiratory system.

Detailed explanation-2: -The lungs are the foundational organs of the respiratory system, whose most basic function is to facilitate gas exchange from the environment into the bloodstream. Oxygen gets transported through the alveoli into the capillary network, where it can enter the arterial system, ultimately to perfuse tissue.

Detailed explanation-3: -The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood. A reduced lung function means that the ability of lungs to exchange gases is reduced.