observation at 5 hr after intrapulmonary injection of 0.5 % lambda carrageenan solution revealed epithelial cell ( predominantly type 1 pneumocyte ) injury , exposing the basement membrane of the alveolar wall , and that at 40 hr demonstrated an appearance of many large pneumocytes among the alveolar lining epithelium as a reparative reaction .
C0225698
pneumocytes
C0225694
alveolar