The
mucosa of the colon
is characterized by straight crypts with
no villi.
Unless
specially stained, the mucus in goblet cells
appears as clear "bubbles" in crypt
epithelium. But note that epithelial nuclei
are more numerous than the mucus blobs, indicating that absorptive
cells remain the predominant cell type in colon
epithelium (as also in the small intestine),
even though they are crowded by goblets and hence inconspicuous.
