HA28 shows one of the crypts in HA27 at higher magnification. Paneth cells are located in the deepest portion of the crypts. Their eosinophilic granules containing lysozyme are prominent in these cells (arrows HA28). From Dr. Welch’s course notes, what is the function of lysozyme? The mitotic figures with condensed chromosomes (arrowheads) indicate the region of stem cells that repopulate the epithelium of the crypt and villus. The base of the crypt touches the muscularis mucosae (mm).