Bile can be prevented to pass into duodenum by

Options

A. Sphincter of Oddi
B. Cardiac sphincter
C. Pyloric sphincter
D. Ileo-caecal valve

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks which structure can prevent bile from passing into the duodenum.

2. **Identifying Relevant Structures:**
The options provided are:
- Sphincter of Oddi
- Cardiac sphincter
- Pyloric sphincter
- Ileocecal valve

3. **Analyzing Each Option:**
- **Sphincter of Oddi:** This sphincter surrounds the opening of the bile duct and the pancreatic duct into the duodenum. It controls the flow of bile and pancreatic juices into the duodenum.
- **Cardiac Sphincter:** This sphincter is located at the junction of the esophagus and stomach. It does not control bile flow.
- **Pyloric Sphincter:** This sphincter controls the passage of food from the stomach to the duodenum but does not directly control bile flow.
- **Ileocecal Valve:** This valve is located between the ileum of the small intestine and the cecum of the large intestine. It does not control bile flow.

4. **Conclusion:**
The correct answer is the **Sphincter of Oddi**, as it is responsible for regulating the flow of bile into the duodenum.

**Final Answer:**
Bile can be prevented from passing into the duodenum by the **Sphincter of Oddi**.

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