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 Ryan Langerhans Ryan David Langerhans (born February 20, 1980) is an American former professional baseball outfielder. Langerhans was drafted in the third round of the 1998 Major League Baseball draft by the Atlanta Braves, and made his debut with them in 2002. He has also played in Major League Baseball for the Oakland Athletics, Washington Nationals, Seattle Mariners, Los Angeles Angels of Anaheim, and Toronto Blue Jays. Langerhans attended Round Rock High School in Round Rock, Texas. During the 1996 season, Langerhans batted .442 and was selected to the All-State team. His next season, 1997, Langerhans batted .427 and was