What is the primary function of the gallbladder?

The primary function of the gallbladder is to store and concentrate bile. Bile, which is produced by the liver, plays a critical role in the digestion and absorption of fats. Once bile is produced, it is transported to the gallbladder, where it is stored until needed by the digestive system. When food, particularly fatty food, enters the small intestine, the gallbladder releases concentrated bile into the intestine to aid in the emulsification and digestion of fats, facilitating better absorption of dietary lipids.

This storage and concentration process allows for a more efficient digestive response, as the body can regulate the release of bile based on dietary intake. While the liver produces bile and other organs like the pancreas are involved in digestion and nutrient absorption, it is specifically the gallbladder that is responsible for storing and concentrating bile until it is needed in the digestive process.