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A nail is a protective plate characteristically found at the tip of the digits (fingers and toes) of all primates, corresponding to the claws in other tetrapod animals. Fingernails and toenails are made of a tough rigid protein called alpha-keratin, a polymer also found in the claws, hooves and horns of vertebrates. [1]
1 Φεβ 2024 · The parts of the nail, whether at your fingers or toes, follow a basic structure. This nail anatomy serves to protect against infections or injury, while adding functional ability (like scratching) and improving sensation and dexterity (self-defense and other skill with your hands).
29 Νοε 2021 · The nail unit consists of the nail plate and the surrounding soft tissues: Nail plate – outer portion of the nail unit, formed by layers of keratin. It forms a hard, yet flexible, translucent plate. Nail folds – skin that surrounds and protects the proximal and lateral margins of the nail plate.
28 Σεπ 2024 · A nail is a hard, keratinized structure found at the tips of the fingers and toes in humans and many other animals. Composed primarily of the protein keratin, nails grow from the nail matrix, which is located beneath the cuticle.
3 Οκτ 2024 · Learn about the nail, a horny plate that grows on the back of each finger and toe in humans and primates. Find out how the nail is made, how it grows, and what it does.
10 Ιαν 2024 · The nail anatomy is a masterpiece of design. It features various parts of a nail, such as the sturdy nail plate, the sensitive nail bed, the intricate matrix responsible for growth and development, and the mysterious half-moon-shaped lunula.
29 Ιουλ 2024 · The nail is framed by the lateral nail folds on the left and right side of it. The skin bordering the lower end of the nail is called the proximal nail fold. A thin layer of skin, known as the cuticle, grows over the nail there.
