As part of the digestive system, the gallbladder is a small, pear-shaped organ situated under the right lobe of the liver. These organs sit opposite the stomach and behind the ribs in the upper right abdominal quadrant, according to MedlinePlus and WebMD.
The gallbladder stores the bile that is made in the liver until a person eats a meal. When food is in the small intestine, bile flows from the liver to the gallbladder and into the small intestine, explains WebMD. The gallbladder can be removed without harming the body because bile has other ways of entering the small intestine.