Toenails

Toenails

Toenails (/ˈtoʊˌneɪlz/), also known as Onychia in medical terminology, are the hard, protective coverings at the end of most vertebrate digits. They are a type of nail found on the toes of humans and other primates.

Etymology

The term "toenail" comes from the Old English words "tā" meaning "toe" and "nægel" meaning "nail". The medical term "Onychia" is derived from the Greek word "onyx" which means nail.

Anatomy

Toenails are made up of a tough protein called keratin. They grow from a region at the base of the nail known as the nail matrix. The visible part of the toenail is called the nail plate, which is supported by the underlying nail bed.

Function

Toenails serve several functions. They help to protect the sensitive tips of the toes, enhance the sense of touch, and aid in the picking up of small objects. They also play a role in maintaining balance and stability.

Related Terms

• Ingrown toenail: A condition in which the edge of the toenail grows into the skin of the toe.
• Toenail fungus: A common condition that begins as a white or yellow spot under the tip of your toenail.
• Onychomycosis: A fungal infection of the toenails or fingernails that may cause discoloration, thickening, and separation from the nail bed.
• Onycholysis: A condition that causes the toenails to separate from the skin underneath them.
• Onychophagia: The habit of biting one's nails.

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