Where does nail plate oil come from if the nail bed lacks glands?

Câu hỏi:

If there are no sebaceous glands in the giường móng tay, where does the oil that lubricates the tấm móng tay come from?

Trả lời:

There are no sebaceous glands in the nail bed. The nail bed comprises epidermal and dermal layers but lacks sebaceous glands.

The oil that lubricates the nail plate comes primarily from the sebaceous glands in the surrounding skin, particularly in the nếp gấp móng tay gần Và nếp gấp móng tay bên. Additionally, the eccrine sweat glands in the skin contribute moisture, which helps maintain nail flexibility.

Another key source of lubrication is sebum from the fingertips, which naturally transfers to the nail surface through contact with the surrounding skin. This helps keep the nail plate from becoming overly dry and giòn.