Gallbladder

A small organ that plays a crucial role in digesting fats and storing bile.

The gallbladder is a pear-shaped, hollow organ located beneath the liver. It stores and concentrates bile produced by the liver, which is essential for the digestion and absorption of fats in the small intestine. When food, particularly fatty food, is consumed, the gallbladder releases bile into the duodenum to aid in digestion.

Terminologia Anatomica

vesica fellea

System

Digestive system

Function

The primary function of the gallbladder is the storage and release of bile, a digestive fluid composed of bile salts, cholesterol, and bilirubin. Bile facilitates the emulsification of fats, breaking them down into smaller droplets, which increases the surface area for digestive enzymes to act upon. This process not only aids in fat digestion but also assists in the absorption of fat-soluble vitamins such as A, D, E, and K. Additionally, the gallbladder plays a role in regulating bile concentration and secretion, ensuring that an adequate supply of bile is available when needed during digestion. Disruptions in gallbladder function can lead to digestive issues, including malabsorption of fats, resulting in symptoms such as diarrhea and nutrient deficiencies.

Location

The gallbladder is situated on the underside of the liver, in the right upper quadrant of the abdomen. It is strategically positioned to receive bile from the liver through the hepatic duct. The gallbladder is connected to the duodenum via the cystic duct, which allows for the release of bile into the digestive tract when required. This anatomical arrangement ensures that the gallbladder can efficiently store bile produced by the liver and release it in response to digestive demands.

Did You Know?

The gallbladder can hold approximately 30 to 50 milliliters of bile.
Not everyone has a gallbladder; some people undergo cholecystectomy, the surgical removal of the gallbladder, usually due to gallstones.
The color of bile can range from yellow-green to brown, depending on its concentration and the presence of various compounds.
The gallbladder can store bile for several days while it awaits the next digestive process.