These cells are most abundant near the muscularis mucos and in the submucosa.
This is now enlarged by the breaking down of the remaining tissue of the follicle, then of the submucosa.
Thence they penetrate the mucous membrane and the submucosa (Parrot).
Situated thus between the mucous and muscular coats of the intestine this layer is known as the submucosa.
In the later stages, erosion of the mucosa occurs, and the upper layers of submucosa become involved.
A thin layer of mesoblast, probably the submucosa, sl, lies beneath the epithelium and projects up into the folds.
submucosa sub·mu·co·sa (sŭb'myōō-kō'sə)
A layer of loose connective tissue beneath a mucous membrane.