The jejunum is the midsection of the small intestine, connecting the duodenum to the ileum. It is about 2.5 m long, and contains the plicae circulares, and villi that increase its surface area. Products of digestion (sugars, amino acids, and fatty acids) are absorbed into the bloodstream here.
Not to be confused with the cells of the islets of Langerhans, found in the pancreas, or Langhans giant cell.
Share to: D-cells, or Delta cells, can be found in the stomach, intestine, or Islets of Langerhans (the hormone producing regions of the pancreas which also produce glucagon and insulin â¦).hare to: D-cells, or Delta cells, can be found in the stomach, intestine, or Islets of Langerhans (the hormone producing regions of the pancreas which also produce glucagon and insulin â¦).