INTEGUMENTERY SYSTEM
INTEGUMENTERY SYSTEM MISCELLENOUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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melanin gets into arteries
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melanosomes surround the nucleus
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melanocytes move to the stratum corneum
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melanocytes absorb melanin
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Detailed explanation-1: -Melanin synthesized within melanosomes is transported via dendrites to adjacent keratinocytes, and accumulate within keratinocytes and melanocytes in the perinuclear area as supranuclear “caps” that are thought to shield DNA from UV rays (58).
Detailed explanation-2: -Melanin protects your skin by absorbing harmful rays, including UVA, UVB, UVC and blue light. Protection against reactive oxygen species (ROS). Reactive oxygen species are byproducts of your body’s cell processes.
Detailed explanation-3: -Melanin protects cells from damage by UV, by producing a ‘veil’ over the nucleus. Melanocytes are found in the stratum basale layer. About 1 in every 5 to 10 cells in this layer is a melanocyte.
Detailed explanation-4: -The outer layer of the skin has cells that contain the pigment melanin. Melanin protects skin from the sun’s ultraviolet rays. These can burn the skin and reduce its elasticity, leading to premature aging. People tan because sunlight causes the skin to produce more melanin and darken.