What is the primary material that makes up the nail plate?

• A. Collagen
• B. Keratin
• C. Calcium
• D. Silicon

Answer: (B)

The primary material that makes up the nail plate is keratin. Keratin is a fibrous protein that is key to the structure and strength of the nails, hair, and the outer layer of skin. In nails, keratin is produced by specialized cells in the nail matrix, contributing to their rigidity and resilience. The organization of keratin within the nail plate allows it to serve its protective function effectively, safeguarding the delicate structures underneath.

Collagen, while an important protein in the structure of skin and connective tissues, does not play the same role in nails as keratin. Calcium is critical for overall bone health and function, but it is not a structural component of the nail plate itself. Silicon, although occasionally referenced in discussions of strengthening nails, does not constitute a significant part of the nail’s composition. Therefore, keratin stands out as the essential and predominant material in the formation of the nail plate.