If you want skin fun

Added: Kerby Struthers - Date: 30.11.2021 17:45 - Views: 25617 - Clicks: 4198

You might be surprised to find out it's the skin, which you might not think of as an organ. No matter how you think of it, your skin is very important. It covers and protects everything inside your body. Without skin, people's muscles, bones, and organs would be hanging out all over the place. Skin holds everything together. It also:. The skin is made up of three layers, each with its own important parts. The layer on the outside is called the epidermis say: eh-pih-DUR-mis. The epidermis is the part of your skin you can see.

Look down at your hands for a minute. Even though you can't see anything happening, your epidermis is hard at work. At the bottom of the epidermis, new skin cells are forming. When the cells are ready, they start moving toward the top of your epidermis. This trip takes about 2 weeks to a month. As newer cells continue to move up, older cells near the top die and rise to the surface of your skin. What you see on your hands and everywhere else on your body are really dead skin cells. These old cells are tough and strong, just right for covering your body and protecting it.

But they only stick around for a little while. Soon, they'll flake off. Though you can't see it happening, every minute of the day we lose about 30, to 40, dead skin cells off the surface of our skin.

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So just in the time it took you to read this far, you've probably lost about 40, cells. That's almost 9 pounds 4 kilograms of cells every year! But don't think your skin might wear out someday. Your epidermis is always making new skin cells that rise to the top to replace the old ones. They make a substance called melanin say: MEL-uh-nun. Melanin gives skin its color.

The darker your skin is, the more melanin you have. When you go out into the sunthese cells make extra melanin to protect you from getting burned by the sun's ultraviolet, or UV, rays. That's why your skin gets tan if you spend a lot of time in the sun. But even though melanin is mighty, it can't shield you all by itself. You'll want to wear sunscreen and protective clothing, such as a hat, to prevent painful sunburns.

Protecting your skin now also can help prevent skin cancer when you get older. The next layer down is the dermis say: DUR-mis. You can't see your dermis because it's hidden under your epidermis. The dermis contains nerve endings, blood vessels, oil glands, and sweat glands. It also contains collagen and elastin, which are tough and stretchy. The nerve endings in your dermis tell you how things feel when you touch them. They work with your brain and nervous system, so that your brain gets the message about what you're touching.

Is it the soft fur of a cat or the rough surface of your skateboard?

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Sometimes what you feel is dangerous, so the nerve endings work with your muscles to keep you from getting hurt. If you touch something hot, the nerve endings in your dermis respond right away: "Ouch! That's hot! This all happens in a split second, without you ever thinking about it. Your dermis is also full of tiny blood vessels. These keep your skin cells healthy by bringing them the oxygen and nutrients they need and by taking away waste.

These blood vessels are hard to see in kids, but you might get a better look if you check out your grandparents' skin. As the dermis gets older, it gets thinner and easier to see through. The dermis is home to the oil glands, too. Sebum is your skin's own natural oil. It rises to the surface of your epidermis to keep your skin lubricated and protected. It also makes your skin waterproof — as long as sebum's on the scene, your skin won't absorb water and get soggy. You also have sweat glands in your dermis. Even though you can't feel it, you actually sweat a tiny bit all the time.

The sweat comes up through porestiny holes in the skin that allow it to escape. When the sebum meets the sweat, they form a protective film that's a bit sticky. An easy way to see this film in action is to pick up a pin with your fingers. Then wash your hands well with soap and water and dry them off completely. Now try to pick up that pin again. It won't be so easy because your sticky layer is gone!

Don't worry — it will be back soon, as your sebaceous and sweat glands create more sticky stuff. The third and bottom layer of the skin is called the subcutaneous say: sub-kyoo-TAY-nee-us layer. It is made mostly of fat and helps your body stay warm and absorb shocks, like if you bang into something or fall down. The subcutaneous layer also helps hold your skin to all the tissues underneath it. This layer is where you'll find the start of hair, too. Each hair on your body grows out of a tiny tube in the skin called a follicle say: FAHL-ih-kul.

Every follicle has its roots way down in the subcutaneous layer and continues up through the dermis. You have hair follicles all over your body, except on your lips, the palms of your hands, and the soles of your feet.

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And you have more hair follicles in some places than in others — there are more thanfollicles on your head alone! Your hair follicles rely on your sebaceous glands to bring on the shine. Connected to each follicle in the dermis layer is a tiny sebaceous gland that releases sebum onto the hair.

This lightly coats the hair with oil, giving it some shine and a little waterproofing. Your skin can help if you're feeling too hot or too cold. Your blood vessels, hair, and sweat glands cooperate to keep your body at just the right temperature. If you were to run around in the heat, you could get overheated. If you play outside when it's cold, your inner temperature could drop. Either way, your skin can help.

I went into SQUAD FILL as a NO SKIN, then showed my RECON EXPERT... (they freaked out)

Your body is pretty smart. It knows how to keep your temperature right around Your skin can respond to messages sent out by your hypothalamus say: hy-po-THAL-uh-musthe brain's inner thermometer.

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If you've been running around on a hot day, your blood vessels get the al from the hypothalamus to release some of your body's heat. They do this by bringing warm blood closer to the surface of your skin. That's why you sometimes get a red face when you run around. To cool you down, sweat glands also swing into action by making lots of sweat to release body heat into the air. The hotter you are, the more sweat your glands make! Once the sweat hits the air, it evaporates this means that it changes from a liquid to a vapor off your skin, and you cool down.

What about when you're ice-skating or sledding? When you're cold, your blood vessels keep your body from losing heat by narrowing as much as possible and keeping the warm blood away from the skin's surface. You might notice tiny bumps on your skin. Most kids call these goosebumpsbut the fancy name for them is the pilomotor say: PY-lo-mo-ter reflex.

The reflex makes special tiny muscles called the erector pili say: ee-REK-tur pee-LEE muscles pull on your hairs so they stand up very straight. Unlike other organs like your lungs, heart, and brainyour skin likes a good washing. When you wash your skin, use water and a mild soap.

And don't forget to cover scrapes and cuts with gauze or a bandage.

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This keeps the dirt out and helps prevent infections. It's just one way to be kind to the skin you're in! Reviewed by: KidsHealth Medical Experts. Larger text size Large text size Regular text size. What's the body's biggest organ? It also: protects our bodies helps keep our bodies at just the right temperature allows us to have the sense of touch Don't Miss Your Epidermis The skin is made up of three layers, each with its own important parts.

1 Bye-Bye Skin Cells These old cells are tough and strong, just right for covering your body and protecting it. Keep It Clean!

If you want skin fun

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