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.
16 photos: World's most dangerous public transport cities for women. 15. Tokyo â Tokyo ranks second in safety, in part due to measures implemented to combat widespread groping of women in often overcrowded buses and trains. The city was one of the first in the world to introduce women-only trains.