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
Islets and skerries in the Faroes Islets and skerries in the Faroes Besides the 18 islands of the Faroes there are also several islets and skerries. The Faroe Islands consist of 779 islands, islets and skerries. The islets are small and are geographical parts of the larger islands. Suðuroy consists of 263 islands, islets and skerries, which is the largest number. The islets are measured in square hectometers (hectares), the largest being comparable in size to the smallest island, Lítla Dímun. Here is a list of the largest islets: 1. Tindhólmur (65,0 sqhm), at Sørvágur Vágar 2. Mykineshólmur (45,0 sqhm), at Mykines 3. Trøllhøvdi (19,0 sqhm),