In which of the following preparation collagen fibres are present in the form of parallel bundles of fibres ?

Options

A. Tendon
B. Ligament
C. Both 1 and 2
D. None of these

Answer

To solve the question regarding the presence of collagen fibers in the form of parallel bundles, we will analyze the options provided.

### Step-by-Step Solution:

1. **Understanding Collagen Fibers**:
- Collagen fibers are a type of protein fiber found in connective tissues. They provide strength and support to various structures in the body.

2. **Identifying Dense Regular Connective Tissue**:
- Collagen fibers are organized in different ways depending on the type of connective tissue. In dense regular connective tissue, collagen fibers are arranged in parallel bundles. This arrangement allows these tissues to withstand tensile forces in one direction.

3. **Analyzing the Options**:
- **Tendon**:
- Tendons are made of dense regular connective tissue. They connect muscles to bones and have collagen fibers arranged in parallel bundles, which allows them to effectively transmit the force generated by muscles to bones.
- **Ligament**:
- Ligaments are also composed of dense regular connective tissue. They connect bones to other bones and similarly have collagen fibers arranged in parallel bundles, providing strength and stability to joints.

4. **Conclusion**:
- Since both tendons and ligaments are made of dense regular connective tissue and contain collagen fibers in parallel bundles, the correct answer to the question is **both 1 and 2**.

### Final Answer:
**Both tendon and ligament contain collagen fibers in the form of parallel bundles.**

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