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By the 1890s scientists knew the adrenal glands controlled the fight-or-flight response
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The vocal folds stretch between the arytenoid cartilages and the thyroid cartilage
melanocyte necklace | silver pp_neuro By the 1890s scientists knewMelanocyte necklace sterling silver The cell that decides skin colour is not a skin cell at all by origin. The melanocyte starts life in the neural crest, then migrates out to the skin, hair, eyes, and inner ear during development. By the time it reaches the basal layer of the epidermis, it has more in common with a neuron than with the keratinocytes around it. The Science of the Melanocyte Melanocytes produce melanin in dedicated organelles called
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