This high magnification
view of the duodenum shows the boundary between the mucosa, located above
the pink-staining muscularis mucosae, containing the bases of crypts of Lieberkuhn,
and the submucosa, located below the m.m., containing seromucous Brunner's
glands. Note the terminal bars terminal webs located at the apical margins
of the epithelial cells of both the mucosal glands and Brunner's glands.
