part of part of goblet cell intestine goblet cell small intestine goblet cell A goblet cell that is part of the small intestine. goblet cell of small intestine small intestinal goblet cell Small intestine goblet cells are specialized epithelial cells found in the lining of the small intestine. They are scattered among other columnar cells in the small intestine lining and form a vital part of the intestinal villi—tiny, finger-like projections that boost the absorption of nutrients by increasing the surface area of the intestine. The name ‘goblet cell’ is derived from the cell's distinctive goblet shape, which features a broad apex and a narrow base. The primary function of the small intestine goblet cells is to secrete mucus, a thick and lubricating substance that plays a crucial role in the body's defense mechanisms. This mucus layer, formed through the aggregation of individual mucin glycoproteins produced by goblet cells and secreted from vesicles located near the apical membrane, provides a protective lining that safeguards the epithelial cells of the intestine from corrosive substances and pathogenic organisms. Moreover, the mucin layer helps in the smooth passage of food material along the digestive tract. Additionally, goblet cells in the small intestine contribute significantly to the maintenance of intestinal homeostasis. They actively engage in signal transduction pathways initiated by the native microflora and food antigens, modulating immune responses and preventing inflammation and autoimmunity. The mucus layer also functions as the habitat for beneficial bacteria, thereby facilitating a symbiotic relationship and promoting overall gut health. Any dysfunction or abnormality affecting these cells, such as depletion or hyperplasia, may potentially lead to severe gastrointestinal disorders such as inflammatory bowel disease. (This extended description was generated by ChatGPT and reviewed by the CellGuide team, who added references, and by the CL editors, who approved it for inclusion in CL. It may contain information that applies only to some subtypes and species, and so should not be considered definitional.) goblet cell of epithelium of small intestine https://cellxgene.cziscience.com/cellguide/CL_1000495 FMA:86929 small intestine secretory cell epithelium of small intestine