has part has part has_part characteristic of has modifier intestinal crypt stem cell abnormal cell physiology abnormal intestinal epithelium physiology abnormal intestinal crypt stem cell physiology 2024-07-02T20:14:22Z MP:0014509 abnormal stem cell of intestinal crypt of Lieberkuhn physiology any functional anomaly in the cells found in the zone occupying the bottom region of the crypt that provide the source of most of the cell types of the intestinal epithelium, proliferate by mitotic division, and differentiate into columnar or goblet cells abnormal functionality