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Mongolian spot is a congenital developmental condition—that is, one existing from birth—exclusively involving the skin.The blue colour is caused by melanocytes, melanin-containing cells, that are usually located in the surface of the skin (the epidermis), but are in the deeper region (the dermis) in the location of the spot. [6]
Freckles are clusters of concentrated melaninized cells which are most easily visible on people with a fair complexion.Freckles do not have an increased number of the melanin-producing cells, or melanocytes, but instead have melanocytes that overproduce melanin granules (melanosomes) changing the coloration of the outer skin cells (keratinocytes).
This is an accepted version of this page This is the latest accepted revision, reviewed on 19 January 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
Light skin is a human skin color that has a low level of eumelanin pigmentation as an adaptation to environments of low UV radiation. [1] [2] Due to migrations of people in recent centuries, light-skinned populations today are found all over the world.
Native Americans in the United States are defined by citizenship, culture, and familial relationships, not race. [121] [122] Having never defined Native American identity as racial, [121] historically, Native Americans have commonly practiced what mainstream society defines as interracial marriage, which has affected racial ideas of blood ...
This aversion to freckles wasn’t limited to Korea. When I returned to the United States, my favorite novel, Anne of Green Gables, took on a heavier weight. Red-haired, gangly-limbed Anne proudly ...
[58] [174] An indigenous American sample from 16,000 BCE in Idaho, which is craniometrically similar to modern Native Americans, was found to have been closely related to Paleosiberians, confirming that Ancestral Native Americans split from an ancient Siberian source population somewhere in northeastern Siberia. Genetic data on samples with ...
Generally, the East Asian, Central Asian and Native American population has straight hair with a very thick cuticle layer [5] and South Asians have thick, wavy or curly hair, [6] while the general hair type seen in black African hair is thick, curly and dense with more hair growing from the head. The curly quality comes from the shape of the ...