Step 1: Understanding the Concept:
Bile is a greenish-yellow fluid essential for the digestion and absorption of fats. There is a distinction between where it is produced and where it is concentrated and kept.
Step 2: Detailed Explanation:
1. Production: Bile is secreted by the liver (specifically by hepatocytes).
2. Storage: When digestion is not occurring, bile flows through the hepatic ducts and the cystic duct into the gall bladder.
3. Function of Gall Bladder: It stores and concentrates bile (by absorbing water) until it is needed in the duodenum after a meal containing fat.
4. Release: Hormones like cholecystokinin (CCK) trigger the gall bladder to contract and release bile into the duodenum.
Step 3: Final Answer:
The liver produces bile, but the gall bladder is the specialized reservoir for its storage.