Your Skin
Melanin gives skin its color. The darker skin is, the more melanin you have. When you're out into the sun, all these cells make extra melanin to guard you from getting burned from the sun's ultraviolet, or UV, sun rays.
That's why your skin gets auburn if you spend a lot of time on Jordan Shoes For Sale a sunny day. But even though melanin is infamous, it can't shield you all by itself. You'll want to wear sunscreen plus protective clothing, such as a hat, to prevent painful sunburns. Protecting your epidermis now also Nike Cortez Classic Red can help prevent melanoma when you get older.
The Dermis Is Under the Nike Cortez Suede Shoes Epidermis
Another layer down is the skin (say: DUR mis). You can't see your skin because it's hidden under your dermis. The dermis contains neurological endings, blood vessels, oil glands, and also sweat glands. It also contains elastin and collagen, which are tough and stretchy.
The nerve endings in Air Jordan 4 Toro Bravo your dermis tell you how factors feel when you touch them. They work with your brain in addition to nervous system, so that your brain offers the message about what you're touching. Is it the soft coat of a cat or the hard surface of your skateboard?
Often what you feel is damaging, so the nerve endings deal with your muscles to keep you from receiving hurt. If Nike Air Jordan Uk Sale you touch one thing hot, the nerve being in your dermis respond straight Ray Bans Uk Sale away: "Ouch! That's hot!" The actual nerves quickly send this particular message to the brain as well as spinal cord, which then immediately directions the muscles to take a hand away. This all happens in a new split second, without you ever great deal of thought.
http://www.zijieshangmao.com/news/html/?403238.html
http://www.szyouguolu.com/forum.php?mod=viewthread&tid=1826472&extra=
http://www.cainao.com.cn/forum.php?mod=viewthread&tid=1295072 |
