Pancreatic islets Pancreatic islets The pancreatic islets or islets of Langerhans are the regions of the pancreas that contain its endocrine (hormone-producing) cells, discovered in 1869 by German pathological anatomist Paul Langerhans. The pancreatic islets constitute 1 to 2% of the pancreas volume and receive 10–15% of its blood flow. The pancreatic islets are arranged in density routes throughout the human pancreas, and are important in the metabolism of glucose. There are about 3 million islets distributed in the form of "density routes" throughout the pancreas of a healthy adult human, each of which measures an average of about 0.1 mm (109
Ryan Langerhans going a combined 0-for-4 with a walk and an error. On May 2, 2007, he was traded to the Washington Nationals for Chris Snelling. On June 28, he was traded to the Seattle Mariners for utility player Mike Morse. With the Mariners, Langerhans had better results hitting curve balls and sliders than fastballs and changeups, causing some speculation that this skill set could be responsible for his tendency to play in a part-time role. He was non-tendered at the deadline to offer arbitration on December 12, 2009. On December 18, however, the Mariners re-signed Langerhans to a minor league contract.