1 The pancreas is an abdominal gland situated behind the stomach in the upper abdomen.  The main function of the pancreas is to secrete hormones and enzymes that help with digestion and regulate blood sugar (glucose) metabolism.
See also: List of tram and light rail transit systems. The Shanghai Metro is the longest metro system by route length. The Beijing Subway is the metro system with the highest ridership. The New York City Subway has the most stations.
Stockholm Metro (Stockholms Tunnelbana) is the only metro system in Sweden. Cities with light rail (trams); 1  Gothenburg: Gothenburg tram-the most extensive tram network in Northern Europe, consisting of 190 km on a total track length of 80 km.tockholm previously had a large tram network, but this was discontinued in favour of bus and metro; a revival of the tram network was seen in the construction of Tvaerbanan tvÃ¤rbanan in the late 1990s and early. 2000s