Melanocytes

Melanocytes

1. Structure

   • Long dendritic projections
   • Small Nuclei
   • Little cytoplasm

2. Function

   • Produces Melanosomes
     • Move to keratinocytes
       • Through dendritic projections
       • Skin colour is due to ratio
         • Of black eumelanin
         • Red phaemalanin
     • Once in cells
       • Form a 'cap' over nucleus
         • When exposed to UV
         • MCR1 receptor activates
           • Which increases melanosome production

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