Inside the Fingernail

追加: 2026-06-02

[00:00:00]Beneath every fingernail is a layered structure built for protection, growth, and sensation.

[00:00:06]The visible nail plate is made of hard keratin, forming a shield over the fingertip. Under it lies the nail bed, a living tissue filled with tiny blood vessels that give the nail its pink color and help nourish it.

[00:00:19]At the base is the nail matrix, the growth center where new nail cells are produced.

[00:00:25]As these cells multiply, they harden and push the nail forward. Below the surface, the epidermis and dermis support [music] the nail while protecting deeper tissues.

[00:00:37]Blood vessels deliver oxygen and nutrients, while sensory nerves allow the fingertip to detect [music] pressure, pain, and texture with incredible precision.

[00:00:47]Deeper still, the distal phalanx forms the bony foundation of the fingertip, surrounded by soft pulp tissue that cushions impact.

[00:00:58]Your fingernail is not just a cover. It is a living, protective [music] system.