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Medicanet 
body parts
Hair |
HairSpeaking of hair doesn’t only mean the hair on your head.
Hair isn’t just found on your head and face, but also on other different parts of the human body. The palms of the hands, the soles of the feet and the lips are the only areas of the body where human hair isn’t present. Areas where you can’t see body hair doesn’t mean that there’s no hair present. It simply means that the hair is lighter and almost invisible.
The second layer of skin, which is called the dermis, is where the root of the hair starts growing.
Follicles are skin that resembles a tube, and this is where roots are enclosed. The hair is pushed from the roots and the follicle and up to the epidermis, which is the skin’s outer layer. Blood vessels help feed the root, and eventually when the hair makes it way through the skin, the hair is no longer alive. Hairs on the body contain dead cells. This is the reason why one does not experience pain when hair is cut.
Mammals are the only species that have total hair covering. People of different races and from different regions of the world possess different hair types and also hair textures of hair.
Keratin is known to be the most significant hair fiber. The cells bond and then they are cemented together. They’re simply proteins that consist of amino acid chains.
They’re the same substances that form part of the nails, feathers and epidermis, apart from the hair.
Hair on the body has different functions and this all depends on the location of the hair on the human body. Hair on the head supplies warmth. One can easily notice that elderly people frequently suffer from colds. This is because of the loss of few amounts of hair on their head. Hair also protects the skull, acting like a cushion.
Eyelashes protect the eyes.
It helps prevent dust from entering the eyes, and also reduces the amount of light that enters the eyes. Eyebrows also play a significant role in protecting the eyes. Perspiration on the forehead is soaked into the eyebrows, which prevents it from entering the eyes.
Hair is replaced throughout our lives. It’s like a cycle. This isn’t permanent, though.
You lose hair, but then new hair is replaced. Over one hundred thousand hairs cover the head. Some of the hair on your head will be lost to washing, combing and brushing. One strand of hair has a 2 to 6 year growth time. After that, the hair will just fall out.
Hair can be curly or it can be straight, and with that comes different colors. Melanin is what causes the color of hair. Melanin is a substance that causes the pigment in hair and skin. If the hair is lighter that means that is has less melanin. Aging of hair simply means that you’re losing melanin, and this is the reason why the hair color changes to gray or white.
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