iron is absorbed in the duodenum in the digestive system.
iron is absorbed in the duodenum in the digestive system.
where is iron absorbed in the digestive system?
in the duodenum
like most mineral nutrients, the majority of the iron absorbed from digested food or supplements is absorbed in the duodenum by enterocytes of the duodenal lining. these cells have special molecules that allow them to move iron into the body. to be absorbed, dietary iron can be absorbed as part of a protein such as heme protein or iron must be in its ferrous fe form. a ferric reductase enzyme on the enterocytes’ brush border, duodenal cytochrome b (dcytb), reduces ferric fe to fe. a protein called divalent metal transporter 1 (dmt1), which can transport several divalent metals across the plasma membrane, then transports iron across the enterocyte’s cell membrane into the cell. if the iron is bound to heme it is instead transported across the apical membrane by heme carrier protein 1 (hcp1).
human iron metabolism
bullet::::- --- cholecystolithiasis









































bullet::::- --- gallbladder neoplasms









































section::::--- digestive system diseases.:--- digestive system abnormalities.









































section::::--- digestive system diseases.:--- digestive system abnormalities.:--- choledochal cyst.









































bullet::::- --- caroli disease









































section::::--- digestive system diseases.:--- digestive system fistula.









































section::::--- digestive system diseases.:--- digestive system fistula.:--- esophageal fistula.









































bullet::::- --- tracheoesophageal fistula









































section::::--- digestive system diseases.:--- digestive system fistula.:--- intestinal fistula.









































bullet::::- --- rectal fistula









































bullet::::- --- rectovaginal fistula









































section::::--- digestive system diseases.:--- digestive system neoplasms.









































section::::--- digestive system diseases.:--- digestive system neoplasms.:--- biliary tract neoplasms.









































bullet::::- --- bile duct neoplasms









































bullet::::- --- common bile duct neoplasms









































bullet::::- --- gallbladder neoplasms
list of mesh codes (c06)