abnormal Brunner's gland morphology absent Brunner's glands 2014-01-01T16:58:33Z MP:0012520 MPheno.ontology absence of the branched acinotubular glands found in the submucosa of the duodenum located above the Sphincter of Oddi; their main function is to produce a mucus-rich alkaline secretion (containing bicarbonate) to protect the duodenum from the acidic content of chyme, provide an alkaline condition for the intestinal enzymes to be active (thus enabling absorption to take place), and lubricate the intestinal walls; they also secrete urogastrone, which inhibits parietal and chief cells of the stomach from secreting acid and their digestive enzymes absent duodenal glands absent glands of Brunner absent glandula duodenales absent glandula duodenales Brunneri csmith