Common bile duct is form by the union of

Options

A. right and left hepatic ducts
B. right and left cystic ducts
C. common hepatic duct and cystic duct
D. left hepatic duct and cystic duct

Answer

To solve the question regarding the formation of the common bile duct, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components**: The common bile duct is a crucial structure in the digestive system that facilitates the flow of bile from the liver and gallbladder into the small intestine.

2. **Identify the Ducts Involved**: The common bile duct is formed by the union of two specific ducts:
- **Cystic Duct**: This duct carries bile to and from the gallbladder, where bile is stored.
- **Common Hepatic Duct**: This duct carries bile from the liver, where it is produced.

3. **Union of Ducts**: The common bile duct is formed when the cystic duct from the gallbladder merges with the common hepatic duct from the liver.

4. **Additional Information**: The common bile duct may also join with the pancreatic duct to form the ampulla of Vater, but for the purpose of this question, we focus only on the cystic duct and common hepatic duct.

5. **Conclusion**: Therefore, the common bile duct is formed by the union of the cystic duct and the common hepatic duct.

### Final Answer:
The common bile duct is formed by the union of the **cystic duct** and the **common hepatic duct**.

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