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What is the scientific name for human nails?

Fingernails and toenails are made of a tough protein called keratin, as are animals' hooves and horns. Along with hair and teeth they are an appendage of the skin. The parts of the nail are: * Matrix This is the only living part of the nail. It is situated behind and underneath the Nail Fold and produces protein keratin which makes up the Nail Plate. If the matrix is ever damaged in any way, it would affect the Nail Plate growth. * Eponychium This is the dead skin that forms around the cuticle area. This can be lifted and trimmed during a professional manicure treatment. Tends to be more prominent on males. * Paronychium This is the 'live' skin that folds around the cuticle area giving protection to the Matrix. * Hyponychium, Is the area of attachment between the Nail Plate and Nail Bed that lies underneath the free edge. Anatomical terms of location Proximal and distal, end of the nail. * Nail plate Is the hard and translucent portion which is composed of layers of protein keratin. * Nail bed The Nail Bed is responsible for the 'pinkish' colour of the Nail Plate. It also determines what shape the nail will grow. * Lunula Tends to only be visible in larger nails. Is the whitish crescent shape around the base of the nail plate, is the shadow of the Matrix. * Nail fold A fold of hard skin overlapping the base and sides of a fingernail or toenail * Free edge The part of the nail that extends past the finger, beyond the nail plate. There should always be a free edge present to prevent infections. Ideally a free edge should be half of the 'pink' nail in length.[citation needed] * Nail Groove Acts as 'runners on drawers' and guides the direction of nail growth. They are situated down the sides of the Nail Fold.Taken from Wikipedia.com...the answer to all things.


Related Questions

Who thought you could use the sun to tell the time?

The ancient Egyptians were responsible for developing sundials as a timekeeping device that used the sun's shadow to mark the time. They placed a stick in the ground and used the position of the shadow to indicate different hours of the day.


When was the shadow clock first used?

The shadow clock, also known as a sundial, was first used around 1500 BCE in ancient Egypt. It relied on the position of the sun to cast a shadow, indicating the time of day. This early timekeeping device laid the groundwork for more advanced methods of measuring time in later civilizations.


What is the Mexican sun dial?

The Mexican sun dial, often referred to as a sundial, is a timekeeping device that uses the position of the sun's shadow to indicate the time of day. Traditionally made from materials like stone or metal, it features a gnomon (a vertical stick or blade) that casts a shadow on a marked surface. Sundials have historical significance in various cultures, including Mexican indigenous civilizations, where they were used for agricultural and ceremonial purposes. While they are less common today due to modern timekeeping methods, they remain popular as decorative garden features and educational tools.


What follows you and you sometimes follow it?

Your shadow will follow you or sometimes you follow it.


Where would you find a gnomon?

The gnomon is the physical component of a sundial that casts a shadow onto the graduated scale for the purpose of timekeeping.


What is a device that uses the position of shadows cast the sun to tell the time of day?

A sundial is a device that uses the position of shadows cast by the sun to tell the time of day. The shadow moves around the sundial in a predictable way based on the sun's position in the sky, allowing people to estimate the time. Sundials have been used as timekeeping devices for centuries.


Does sonic get jeloues of Amy and shadow?

sometimes but he does like sally but doesn't want amy near shadow


What is sometimes short sometimes tall sometimes you cannot see it at all?

A shadow, for one.


Where do clocks come from?

Clocks originated from early timekeeping devices that sought to measure the passage of time. The first known timekeeping devices were sundials used by ancient civilizations, which relied on the position of the sun's shadow. Water clocks and hourglasses followed, providing more consistent measurements. The mechanical clock emerged in the Middle Ages, leading to the development of more precise and complex timekeeping instruments we use today.


What does a sundial prove?

A sundial proves the passage of time by using the position of the sun's shadow to indicate the time of day. It relies on the Earth's rotation to create this movement, making it a simple yet effective timekeeping device.


Are sonic and shadow team mates?

sometimes


Why is your shadow sometimes behind you and sometimes in front of you?

It has to do withe position of the sun, if the sun is in front of you then your shadow is behind you vice versa and so on and so forth