0 one of the many very small air bags in the lungs, with thin walls that allow oxygen to enter the blood -- 肺泡（肺中的细小气囊，细胞壁薄，有助于氧气进入血液）
Malar sulcus replaced by a row of finer alveoli.
Structures resembling bronchioles and distended alveoli are present between cysts, no cartilage present in the walls.
Exocytosis of cortical alveoli and its initiation time in medaka eggs induced by microinjection of various agents.
It is supposed that schistosomula escape from pulmonary capillaries into alveoli and migrate through pulmonary tissues to the pleural cavity.
We found only a trace of surfactant in the lumen of alveoli.
The alveoli are smaller than those of the parasphenoid.
There are relatively normal alveoli between the cysts.
The protuberances therefore represent the inflated margins of the alveoli dentalis.
