The tiny air sacs in the lungs are alveoli
The bronchi. There is a left and right main bronchus dividing off the windpipe (trachea), each bronchus undergoes several divisions (about 16-17) becoming smaller and thinner before ending on the air sacs (alveoli), which provide the interface between the airways and the blood vessels so that gas exchange can take place.
The main function of the five pairs of air sacs that birds have is to draw air through the lungs. This is especially important during flight. They also help to regulate heat and alter the specific gravity of birds when swimming or diving.
These are the Alveoli.
Yes
The smallest tube in the lungs is the Bronchus
Alveoli
Alveoli
The tiny air sacs in the lungs are alveoli
Capillaries.
alveoli
Inside the lungs are tiny tubes known as the terminal bronchiole. Within these tubes are thing air sacs which transfer oxygen directly into the blood and remove carbon dioxide.
The air sacs are called Alveoli
The alveolis.
air sacs
alveoli
The alveolis.