If all people have the same number of melanocytes in their skin, how do we explain the differences in color among the various races?Melanocytes:Melanocytes are pigment producing cells found in the epidermis of
Have you ever wondered why there are so many skin colors in the world? Do you know why people living in particular areas usually have a certain color? Biology and history are the two reasons for this.Skin contains something called melanin(黑色素), which determines a person's skin color. ...
Melanocytes in the epidermis help protect the skin by producing the pigment melanin. Melanin, which is brown or black and primarily responsible for...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
7.Have you ever wondered why there are so many skin colours in the world?Do you know why people living in particular areas usually have a certain colour?Biology and history are the two reasons for this. Skin contains something called melanin,which determines a person's skin colour.The more...
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Most people have pink gums; however, just as no two fingerprints are the same, some variation in gum coloration is also normal. Sometimes the gums may appear dark or black due to a higher concentration of melanin or imbalances in pigmentation. This condition occurs most commonly in darker-sk...
As a result, their skin m a d e less melanin, so they coul d g et enough sunlight to produc e vitamin D. their skin g radually got lighter an d they lost hair. Now, peopl e I iving in areas with strong sunlight lik e Africa, have darker skin, whil e peopl e living in ...
melanin it contains26. Higher melanin levels (resulting in a darker skin hue) can provide a better protection against sunlight27but can also contribute to vitamin D deficiency28. It has been found that melatonin can have an effect on the synthesis of melanin29, which is in turn believed to ...
The more melanin in your skin (the darker your skin), the less UVB rays can penetrate. Your weight can also affect your D3 production system. Remember, vitamin D is a fat-soluble vitamin. The more fat cells your body has, the more you may be at risk of a D deficiency, bec...
Sunburns increase the risk of skin cancer. The more fair-skinned you are, the more careful you need to be about getting too much sun. If you have darker skin and/or live further away from the equator in areas that get less sunlight, ask your doctor if you should take a vitamin D ...