出典:Wikipedia
出典:『Wikipedia』 (2011/06/04 12:45 UTC 版)
Type II pneumocytes also called great alveolar cells or septal cells are granular and roughly cuboidal in shape. Type II pneumocytes are typically found at the alveolar-septal junction. Although they comprise 60% of the alveolar lining cells, because of their shape they cover a much smaller surface area than type I cells (<5%).