The smallest tube in the lungs is the Bronchus
alveoli
alveoli. they are the basic functional unit of the lungs. it is where gas exchange occurs.
Tiny tubes in the respiratory system, such as bronchioles and alveolar ducts, are connected to the air sacs, or alveoli. These tubes help in the exchange of gases like oxygen and carbon dioxide between the lungs and blood vessels. The air sacs in the lungs facilitate this gas exchange process by increasing the surface area available for diffusion.
They are called the bronchiThe smallest [air] tubes in the lungs are the broncioles they terminate the larger bronchi.Inside your lungs the two bronchi tubes divide into small bronchial tubes. The bronchial tubes then divide into bronchioles, which are even smaller air passages. Tiny air sacs, called alveoli, are on the ends of the bronchioles.The small tubes located within the lungs are known as the bronchial tubes. The bronchial tubes function is to purify the air that is going into the lungs, when the bronchial tubes become inflamed and swell, Asthma attacks can occur.
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
In mammals, air enters the lungs through tubes called bronchi, which branch into smaller tubules called bronchioles. These bronchioles extend out to tiny air sacs called alveoli, where gas exchange occurs.
Alveoli
Alveoli
alveoli, which are tiny air sacs located in the lungs where oxygen and carbon dioxide exchange occurs.
Alveoli
Alveoli