Which of the following parts of small intestine opens into large intestine?

Options

A. Duodenum
B. lleum
C. Jejunum
D. Colon

Answer

To answer the question "Which of the following parts of small intestine opens into large intestine?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Parts of the Small Intestine**:
The small intestine is divided into three main parts:
- Duodenum
- Jejunum
- Ileum

2. **Understand the Function of Each Part**:
- **Duodenum**: This is the first part of the small intestine where most chemical digestion occurs.
- **Jejunum**: This is the middle section where absorption of nutrients continues.
- **Ileum**: This is the final part of the small intestine.

3. **Locate the Connection to the Large Intestine**:
The ileum connects to the large intestine. The junction between the ileum and the large intestine is regulated by a structure called the ileocecal valve.

4. **Conclusion**:
The part of the small intestine that opens into the large intestine is the **Ileum**.

### Final Answer:
The correct answer is **Ileum**.

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