Melanin

During slavery in the United States, African Americans were not treated with respect. For instance, Caucasian people had developed scientific theories to claim that they are superior to African Americans. Some of the Caucasian people that contributed to coming up with theories or ideas that Caucasians was superior to African Americans are Thomas Jefferson, Charles White, Oliver Goldsmith and Benjamin Rush. There were also many Caucasians people in the United States whose behavior reflects the…

Reflection 2 Having kids is something that not till recently I have discovered I wanted. I never thought about how the smallest factors, such as cartoons, can impact their persona greatly. For example, when Professor Ermitte showed the whole class a picture of her adorable daughter and then told us a story about how when she told her daughter to pick the pretty doll she picked the blonde one over the brunette. This complete shocked me because what has made this young girl think that the blond…

Vitiligo is a condition in which a loss of cells that give color to the skin melanocytes results in smooth, white patches in the midst of normally pigmented skin. It is a common disorder that is caused by the loss of pigment in the skin. Melanin is the pigment that gives the skin its color, so when you lose some pigment in the skin you will see a change of color in your skin. That's due to the destruction of pigment forming cells known as melanocytes. People with vitiligo seem to inherit a…

Functions of the skin: There are eight main functions associated with the skin. These are as follows... 1. Secretion – the skin secretes sebum from the sebaceous glands. This fatty substance lubricates the hair shafts and when combined with perspiration on the surface of the skin, it creates a natural moisturiser which acts as a protective barrier against bacteria. 2. Heat regulation – body temperature is maintained in healthy humans at 37oC (98.6oF). organs involved in heat production are…

Others will express themselves with little to no consequences whatsoever, and others will provide observable changes. We can look at albinism as an example of mutation. Albinism is caused by a mutation of the gene responsible for the production of melanin in our…

dividing. Keratinocytes over time become flatter, lose their nuclei and die. The second cell type is called the Melanocytes, which produces the skin darkening pigment melanin. The cell is located in the Basal Layer of the Epidermis, the Melanosomes are relocated to the Epidermal cells. Which then makes pigmentation of the Epidermis. Melanin is responsible for different skin colours. The Merkel Cell is in the Basal Layer of the Epidermal. It is part of the reason we have the sensation of light…

Mummification is a modification of putrefaction characterised by the dehydration of the tissues converting the body into a leathery mass of skin and tendons surrounding the bone. The internal organs are often decomposed but preserved. Skin shrinkage may produce large artefactual splits mimmicking injuries, particularly seen in the groins, around the neck, and the armpits. Mummification develops in conditions of dry heat, especially when there are air currents,e.g. in a desert or inside a…

skin, light skin, red skin, yellow skin, mulato, and coolie, however, at the end of the day we all acknowledged that racially we are black. While in Jamaica, being black simply defined the color of my skin and my moderately proportioned amounts of melanin never dictated my standing in society, my educational background nor did it provide the preface to my story. It simply served as what I had believed was its purpose; give me a beautiful dark chocolate complexion, which I was extremely proud…

climates. Where there is more sunlight, such as in Africa, there is more need to protect the body’s reserves of folic acid. Hence, there is much more melanocytes, the cells that include melanin to protect bodies against the sun. So skin color is much lighter than those with less sunlight such as up north need less melanin and melanocytes in order to synthesize sufficient levels of vitamin D. Where environmental factors can push for natural selection over generations, they can also change the…

same as a pigment. The difference is that the molecules in dye have to attach to the molecules that color (White 1989). Agents do not have to do that. The reason our hair has a natural color to it is because it is made out of pigments called melanins. Melanins…