Question

Yellow, white and reticular fibres are made up of

• A. Elastin, reticulin, collagen protein respectively
• B. Reticulin, elastin, collagen protein respectively
• C. Collagen, elastin, reticulin protein respectively
• D. Elastin, collagen, reticulin protein respectively

Answer 1

The correct option is D Elastin, collagen, reticulin protein respectively

Yellow fibres are made up of elastin protein, they are thinner, less numerous and branched and are pale yellow in colour. They are very elastic and remain stretched due to tension in areolar tissue.

White fibres are made up of collagen protein. They are most abundant fibrous elements of areolar and other connective tissues. They are long, unbranched fibres of a soluble and shining collagen protein.
Reticular fibres are made up of reticulin protein. They are delicate, freely branching and inelastic fibres, found interwoven to form networks.

So, the correct answer is option D.