Yellow fibres are made up of

Options

A. Ossein
B. Elastin
C. Chondrin
D. Collagen.

Answer

**Step-by-Step Solution:**

1. **Understanding Yellow Fibers**: Yellow fibers are a type of connective tissue found in various parts of the body, particularly in tendons and ligaments.

2. **Classification**: These fibers are classified as loose connective tissue, which plays a crucial role in providing support and elasticity to the structures they are part of.

3. **Function of Yellow Fibers**: Yellow fibers are known for their elasticity, allowing them to stretch and return to their original shape. This property is essential for the functionality of tendons and ligaments, which connect muscles to bones and bones to each other.

4. **Composition of Yellow Fibers**: The primary protein that gives yellow fibers their elastic properties is called elastin. This protein is produced by specialized cells known as fibroblasts.

5. **Conclusion**: Therefore, yellow fibers are made up of elastin, which is the correct answer to the question.

**Final Answer**: Yellow fibers are made up of elastin.

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