Elasticity of the ligaments is due to  

Options

A. yellow branched fibres
B. white unbranched fibres
C. white fibres in bundles
D. white fibres that form network

Answer

To determine the reason behind the elasticity of ligaments, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ligaments**:
- Ligaments are tough fibrous bands of connective tissue that support organs and hold bones together.

2. **Composition of Ligaments**:
- Ligaments are primarily composed of dense fibrous bundles, which include collagenous fibers and elastic fibers.

3. **Types of Fibers in Ligaments**:
- There are two main types of fibers found in ligaments:
- **White Fibers**: These are rich in collagenous fibers and are inelastic. They provide strength but do not allow for much stretch.
- **Yellow Fibers**: These are made up of elastic fibers and are responsible for elasticity.

4. **Identifying the Source of Elasticity**:
- The question specifically asks about the elasticity of ligaments. Since elastic fibers allow for stretching and flexibility, they are crucial for the elasticity of ligaments.

5. **Conclusion**:
- Based on the types of fibers, the elasticity of ligaments is due to **yellow branched fibers**, which are elastic in nature.

### Final Answer:
The elasticity of the ligaments is due to **yellow branched fibers**.

---