Caecum opens into -

Options

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

Answer

**Step-by-Step Solution:**

1. **Identify the Structure**: The caecum is the first part of the large intestine. It is important to recognize its position in the digestive system.

2. **Understand the Function**: The caecum plays a role in the digestive process, particularly in the absorption of fluids and salts that remain after the intestinal digestion and absorption.

3. **Determine the Opening**: The caecum opens into the colon, which is the next section of the large intestine. This is crucial for understanding the flow of digestive contents.

4. **Clarify the Options**: The question provides multiple options: rectum, duodenum, colon, and jejunum. We need to eliminate the incorrect options:
- **Rectum**: This is the final section of the large intestine, not where the caecum opens.
- **Duodenum**: This is the first part of the small intestine, not related to the caecum.
- **Jejunum**: This is the second part of the small intestine, also not related to the caecum.

5. **Conclusion**: Since the caecum opens into the colon, the correct answer is the colon.

**Final Answer**: The caecum opens into the colon.

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