Development of the endocrine system alpha cells. The insulin concentration within the fetal pancreas is 3.6 pmol/g at seven to ten weeks, which rises to 30 pmol/g at 16–25 weeks of gestation. Near term, the insulin concentration increases to 93 pmol/g. The endocrine cells have dispersed throughout the body within 10 weeks. At 31 weeks of development, the islets of Langerhans have differentiated. While the fetal pancreas has functional beta cells by 14 to 24 weeks of gestation, the amount of insulin that is released into the bloodstream is relatively low. In a study of pregnant women carrying fetuses in the mid-gestation and near term
Ryan Langerhans of the 11th inning. This was his first career game-winning homer. On August 25, 2009, Langerhans hit another game-winning home run against the Oakland Athletics off Craig Breslow on a two-ball two-strike pitch with one out and one runner on with the score tied 2-2 in the bottom of the tenth. Langerhans and his wife, Shari, live in Round Rock, Texas, where he also graduated from high school. In high school Langerhans improved his baseball skills and participated in cross country. Langerhans won a Class 5A state championship with the Round Rock High School Dragons in 1997. The Dragons were