The common duct that allows the passage of bile and pancreatic juice into duodenum is 

Options

A. bile duct
B. duodenum
C. pancreatic duct
D. hepato pancreatic duct

Answer

To answer the question about the common duct that allows the passage of bile and pancreatic juice into the duodenum, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components**:
- Bile is produced by the liver and stored in the gallbladder. It aids in the digestion of fats.
- Pancreatic juice is secreted by the pancreas and contains digestive enzymes that help break down carbohydrates, fats, and proteins.

2. **Identify the Location**:
- The duodenum is the first part of the small intestine where food from the stomach mixes with bile and pancreatic juices.

3. **Determine the Ducts Involved**:
- The bile duct carries bile from the gallbladder to the duodenum.
- The pancreatic duct carries pancreatic juice from the pancreas to the duodenum.

4. **Find the Common Duct**:
- The common duct that allows both bile and pancreatic juice to enter the duodenum is known as the **hepatopancreatic duct** (also referred to as the ampulla of Vater). This duct is formed by the union of the bile duct and the pancreatic duct.

5. **Evaluate the Options**:
- Bile duct: Incorrect, as it only carries bile.
- Duodenum: Incorrect, as it is not a duct but a part of the intestine.
- Pancreatic duct: Incorrect, as it only carries pancreatic juice.
- Hepatopancreatic duct: Correct, as it carries both bile and pancreatic juice into the duodenum.

### Final Answer:
The common duct that allows the passage of bile and pancreatic juice into the duodenum is the **hepatopancreatic duct**.

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