has quality has quality in taxon contributes to morphology of Tetrapoda tubular intestinal gland intestinal mucosa crypt of Lieberkuhn http://upload.wikimedia.org/wikipedia/commons/3/38/Small_intestine_low_mag.jpg intestinal gland Lieberkühn crypt NCIT:C32411 Wikipedia:Intestinal_crypt Lieberkuhn gland crypts of Lieberkühn In histology, an intestinal crypt, also crypt of LieberkC<hn and intestinal gland, is a gland found in the epithelial lining of the small intestine and colon. The crypts secrete various enzymes, including sucrase and maltase, along with endopeptidases and exopeptidases. Also new epithelium is formed here, keeping in mind that the epithelium at this site is frequently worn away by the passing food. Loss of proliferation control in the crypts is thought to lead to colorectal cancer. The basal portion of the Crypt contains multipotent stem cells. At each mitosis one daughter remains a stem cell while the other differentiates and migrates up the side of the crypt and eventually the villus. Goblet cells are among the cells produced in this fashion[Wikipedia:Intestinal_crypt]. FMA:63621 The tubular intestinal glands found in the mucosal membranes. UBERON:0001983 follicles of Lieberkühn intestinal gland of Lieberkuhn Most fish lack intestinal glands that extend into the mucosa, Gadidae (Jacobshagen 1937) and Macrouridae (Geisterdoerfer 1973( have glands at the base of surface folds throughout intestine - these have been called crypts, but cell types are the same as for surface epithelium. Crypts have been described in salamander midguts (Reeder 1964) some reptiles (Luppa 1977) and some birds (Ziswiler and Farner 1972). Reptile crypts are less developed than birds and mammals, with epithelium similar to the surface. Avian crypts vary from those with absorprive and goblet cells to those that have cells with basophilic granules crypt of Lieberkuhn MA:0001535 Lieberkuhn's glands intestinal crypt SCTID:118652008 Lieberkuhn's gland EMAPA:35266 Lieberkuhn crypt intestinal crypts UMLS:C1621887 crypt of Lieberkühn