alveoli

alveoli   Dan alveoli

Alveoli allow oxygen to enter the blood They are very thin to let oxygen move from the lungs to the blood vessels, and for carbon dioxide to be

The terminal bronchioles then subdivide into respiratory bronchioles which subdivide into alveolar ducts Numerous alveoli and alveolar sacs Alveoli are first located in the respiratory bronchioles that mark the beginning of the respiratory zone They are located sparsely in these bronchioles, line

หวยแมงปอ Alveoli represent the major sites of gas exchange Their presence increases the surface area of the lung to maximize gas exchange, much like villi and The terminal bronchioles then subdivide into respiratory bronchioles which subdivide into alveolar ducts Numerous alveoli and alveolar sacs