What does avevoli do in the respiratory system?

Alveoli are tiny air sacs located in the lungs where gas exchange occurs. They facilitate the transfer of oxygen from the inhaled air into the bloodstream while allowing carbon dioxide to be expelled from the blood into the air to be exhaled. This process is essential for maintaining the body's oxygen levels and removing waste gases, supporting overall respiratory function. Alveoli are crucial for efficient breathing and sustaining cellular metabolism throughout the body.