Ligament is mainly formed by

Options

A. reticulin
B. elastin
C. mysoin
D. collagen

Answer

### Step-by-Step Solution:

1. **Understanding Ligaments**: Ligaments are connective tissues that connect bones to other bones at joints. Their primary function is to provide stability and support to the skeletal system.

**Hint**: Remember that ligaments connect bones, while tendons connect muscles to bones.

2. **Identifying Components of Ligaments**: Ligaments are made up of various types of fibers. The main types of fibers found in connective tissues include collagen, elastin, and reticular fibers.

**Hint**: Focus on the types of fibers that provide elasticity and strength to connective tissues.

3. **Collagen vs. Elastin**:
- Collagen fibers are strong and provide tensile strength. They are predominantly found in tendons.
- Elastin fibers allow tissues to stretch and return to their original shape. They are primarily found in ligaments.

**Hint**: Think about which type of fiber would be more suitable for a structure that needs to be flexible yet strong.

4. **Conclusion**: Since ligaments require elasticity to allow for movement while still providing support, they are mainly formed by elastin fibers, which are yellow in color.

**Hint**: Consider the color of the fibers associated with ligaments to help remember their composition.

### Final Answer:
Ligament is mainly formed by **elastin**.