The gallbladder is a hollow system that sits just beneath the liver. The gallbladder is a small organ that aids mainly in fat digestion and concentrates bile produced by the liver. It is 3 or 4 inch long and 1 inch in width. It is divided into three sections: funds, body, and neck. During storage in the gallbladder, bile becomes more concentrated which increases its potency and intensifies its effect on fats.