The gallbladder is a sac located under the liver. It stores and concentrates the bile produced in the liver. Bile is released from the gallbladder in response to food, especially fats, in the upper small intestine.
Review Date: 7/28/2015
Reviewed By: Debra G. Wechter, MD, FACS, general surgery practice specializing in breast cancer, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.