787 pages on this wiki. Mark Andrew Spitz (born February 10, 1950) is a retired American swimmer. He won seven gold medals at the 1972 Summer Olympics, an achievement only surpassed by Michael Phelps who won eight golds at the 2008 Olympics.Spitz set new world records in all seven events in which he competed, a record that still stands.87 pages on this wiki. Mark Andrew Spitz (born February 10, 1950) is a retired American swimmer. He won seven gold medals at the 1972 Summer Olympics, an achievement only surpassed by Michael Phelps who won eight golds at the 2008 Olympics.
The colour of the skin is determined by the concentrations of three main pigments: melanin, carotene and haemoglobin. These are found in the dermis and combine to produce the pigmentation of all surface tissues including the skin, mucous membranes, and even the eyes.
At the bottom of the basal layers of our skin we have these cells call melanocytes. These cells are responsible for the production of melanin through a process called melanogenesis. Melanin is the pigment that gives our skin, eyes and hair its color[1]. It is also one of the several skin chromophores our skin supports. Chromophores are molecules that absorb light. In doing so, they impart a specific color. ( we will discuss light absorption and color in another science post).