For 10 points, name this organ that stores the bile it receives from the liver.
This organ disappears in lampreys during development from larvae to the mature organism. One disorder in this organ can be diagnosed with a strongly positive Murphy's sign, and is often treated with prolonged consumption of ursodiol. Cancer in this organ is often preceded by a calcification of its walls, a condition commonly called having a "porcelain" form of this organ. Discharge from this organ is controlled by the sphincter of Oddi, and the substance stored in this organ is sent to the duodenum by a certain duct. This organ is often removed when substances made of cholesterol and calcium salts, its namesake stones, become painful to a patient. For 10 points, name this organ that stores the bile it receives from the liver.
This organ disappears in lampreys during development from larvae to the mature organism.
gallbladder