Slide DMS062 (Monkey; jejunum; PTS). This slide is useful mostly for a detailed cytological examination of the lining epithelium. This layer has been cut in various planes and if you search, you can find places sectioned in a plane perpendicular to that of the epithelial surface. In such places, a brush border and other apical specializations can be clearly seen. Search for a place where the epithelium has been cut in a plane approximately parallel to its surface. Here the lateral cell outlines can be seen to form a hexagonal pattern. Identify the Paneth cells toward the base of the intestinal glands. What are their function?