Figure 6.
Photomicrographs illustrating ultrastructural appearance of equine intestinal epithelial cells in crypt bases of the small intestine and colon. Morphological characteristics of each cell type are clearly distinguishable. Crypt base columnar stem cells, Paneth cells, goblet cells, enteroendocrine, and absorptive enterocytes are marked (asterisks). Note that Paneth cells are not found in the colon. EE = Enteroendocrine. L = Lumen. Transmission electron microscopy; bar = 2 μm (top panels) or 5 μm (bottom panels).