321390.fig.001a
(a)
321390.fig.001b
(b)
Figure 1: Respiratory nasal epithelium from a rabbit of group 2. (a) Intercellular spaces (arrows) that extent from the basement membrane to approximately 2/3 of the height of the epithelial cells, semi-thin section. 1000x. (b) Electron micrograph of (a): The intercellular spaces (arrows) are more abundant around basal cells. 2500x.