Nail (anatomy)

Did you know you have super strong shields on your fingers and toes? These are your nails! They are made of a tough material called keratin, the same stuff that makes your hair and the horns on some animals.

Your nails grow from a special spot under your skin, and they push out slowly over time. They are like tiny armor plates for your fingertips and toes, keeping them safe from bumps and scrapes. Imagine a tiny, hard hat for each finger and toe!

Long, long ago, even before humans walked the Earth, animals had claws. Claws are like super-powered nails that help animals climb, dig, and even catch their food. Over millions of years, these claws changed and became the nails we have today.

Our nails are flatter and not as sharp, but they still help us do important things. They are a reminder of our ancient animal ancestors and how our bodies have changed to help us live in the world.

Your nails do more than just look cool! They help you pick up tiny things, like a crumb or a bead, with your fingertips. They also protect the sensitive tips of your fingers and toes from getting hurt.

Think about it: if you stub your toe, your nail takes some of the hit! Plus, your nails can tell you a little bit about your health. If they look healthy and pink, it usually means you are healthy too.

They are like little windows into your body!

Your nails are always growing, even when you're sleeping! They grow from a special area called the nail matrix, which is hidden under your skin at the base of your nail. As new cells are made, they push the old cells forward, making the nail longer.

Fingernails grow faster than toenails. If you could measure it, your fingernails grow about as fast as your hair! It takes a long time for a fingernail to grow all the way from the bottom to the tip.