This field shows the pseudostratified ciliated epithelium. It is composed of ciliated cells (Ci) with their large pale ovoid nuclei, of mucous goblet cells (+) with their basophilic mucigen granules and of basal cells (B).

In most preparations the highly soluble mucigen granules of goblet cells are extracted during the fixation of the tissue, leaving a lightly stained apical cytoplasm. In the present preparation the mucigen granules have been preserved and are intensely stained with hematoxylin.

The lamina propria (LP) composed of dense connective tissue shows some capillaries (Ca).

Stain: H–­­E
Magnification: ×500