What is the role of the cuticle in relation to the nail?

The role of the cuticle primarily involves sealing the area under the skin at the base of the nail plate. This is essential for maintaining the health of the nail matrix, as it helps to prevent bacteria and other pathogens from entering the space between the skin and the nail. By forming a barrier, the cuticle assists in protecting the newly formed cells as they grow and expand into the nail plate, ensuring a strong and healthy nail formation process.

While the cuticle does play a role in protecting the nail bed and supporting the nail plate by being part of the overall nail structure, its main function revolves around this sealing action which is vital for nail integrity. The cuticle does not provide nutrients, as its structure does not include the necessary components for nourishment; rather, nutrients come from the underlying nail matrix and surrounding tissues.