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Cell that makes skin pigment
Confocal image of a single, isolated melanocyte. These cells lie deep in
the skin and make the melanin pigment that gives the skin its colour. Pigment
granules are produced in special, sealed-off parts of the cell called melanosomes
(yellow). As these melanosomes fill up with pigment, they move out along
the cell’s internal skeleton of actin (red) and microtubules (blue) into
the long projections that wind in and out between the adjacent skin cells.
The melanin then moves across from the melanocyte into the skin cells. The
amount of melanin produced by the melanocytes is what determines how dark
the skin will be skins of different colours all have the same number of
melanocytes.
Credit: Alistair Hume
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