What functions are carried out by the three types of cells in the olfactory epithelium?
There are three major alveolar cell types in the alveolar wall (pneumocytes): Type I (Squamous Alveolar) cells that form the structure of an alveolar wall, Type II cells that secrete pulmonary surfactant to lower the surface tension of water and allows the membrane to separate and Macrophages that destroy foreign material, such as bacteria.
