They are alveoli bunched together in a group
alveoli
Alveoli are expanded chambers of epithelial tissue which form the gas exchange surfaces of the lungs. Multiple alveoli share a common duct forming alveoli sacs.
alveoli
Alveoli is simply the plural form of alveolus.Alveolus = singularAlveoli = plural
Alveoli
plasma, alveoli, protiens
trachea --> bronchi -->bronchioles --> alveoli
Alveoli
No, the word 'alveoli' (the plural form of the noun alveolus) is a common noun, a general word for any small, angular cavity, pit, or hollow.
One alveolus is a singular, tiny air sac of the lung, surrounded by a network of capillaries, and through which oxygen and carbon dioxide are exchanged. A cluster of such air sacs are alveoli (plural of alveolus).
An alveolus (plural: alveoli, from Latin alveolus, "little cavity") is an anatomical structure that has the form of a hollow cavity. Found in the lung parenchyma, the pulmonary alveoli are the dead ends of the respiratory tree, which outcrop from either alveolar sacs or alveolar ducts, which are both sites of gas exchange with the blood as well.