Which part of the nail is most associated with nail growth?

Which part of the nail is most associated with nail growth?

• A. Matrix
• B. Nail plate
• C. Lunula
• D. Hyponychium

Answer: (A)

Growth happens at the matrix, the tissue beneath the proximal nail fold that continuously produces new nail cells. These cells keratinize and become the nail plate, which is pushed outward as fresh cells form, lengthening the nail. The pale lunula is just the visible part of the matrix and indicates active growth, but the matrix itself is the actual growth site. The nail plate is the hard result of that growth, while the hyponychium is the protective skin under the free edge and does not drive nail production.

Growth happens at the matrix, the tissue beneath the proximal nail fold that continuously produces new nail cells. These cells keratinize and become the nail plate, which is pushed outward as fresh cells form, lengthening the nail. The pale lunula is just the visible part of the matrix and indicates active growth, but the matrix itself is the actual growth site. The nail plate is the hard result of that growth, while the hyponychium is the protective skin under the free edge and does not drive nail production.