After 10 min after fertilization, cortical alveoli were absent.
A patch of almost 50 alveoli is present at the anterior extremity of the vomer.
Interestingly, while some alveoli contain five to ten shed cells, others have none.
There is some evidence for small interdental plates dividing adjacent alveoli medially, but these are poorly preserved.
Furthermore, failure to remove unnecessary lactational alveoli during weaning could result in inflammation and tissue damage.
In these ctenochasmatid genera, the crest is low and only weakly grooved, and in addition, none of these genera has dentaries bearing expanded alveoli.
Almost 200 alveoli are present beneath the anterior half of the orbit.
On general microscopic examination, the peripheral airways and the alveoli appeared normal in all cases.
