膚色、髮色及瞳孔顏色均是由黑素細胞(Melanocyte)所產生的黑色素(Melanin)而定。450Please respect copyright.ＰＥＮＡＮＡcnyZXBQ4RH
然而，負責膚色髮色與負責瞳孔顏色的黑素細胞卻有著一道顯著不同的分別。450Please respect copyright.ＰＥＮＡＮＡjxL9r98XTy
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（圖2）黑素細胞所產生的黑色素，會儲存在名為黑色粒子的細胞器官裡頭。450Please respect copyright.ＰＥＮＡＮＡ8YrWZBnfL6
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位於皮膚下的黑素細胞，會釋出黑色粒子到髮囊及皮膚細胞，賦予皮髮顏色。450Please respect copyright.ＰＥＮＡＮＡ46AjMYfYc6
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而位於虹膜(Iris)的黑素細胞，則不會釋出黑色粒子到細胞外部，而是把它儲存在細胞內。450Please respect copyright.ＰＥＮＡＮＡF17ekUhkSK
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（圖3）當光線進入眼睛的虹膜，內部蛋白質所折射及吸收的波長便會呈現出瞳孔的顏色。450Please respect copyright.ＰＥＮＡＮＡG51pMmCxo6
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瞳孔之所以呈藍色，並不是有著藍色素的物質，而是純粹因為虹膜內的黑色素稀少，最終折射出藍色波長的光線。450Please respect copyright.ＰＥＮＡＮＡ1zyLEmoBNP
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虹膜越多黑色素的話，瞳色便會越漸啡黑。450Please respect copyright.ＰＥＮＡＮＡTXZpCnWgXP
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而患有白化病(Albino)的人士，基於缺乏黑色素，光線折射出眼睛內血管的顏色，因而呈粉紅色狀。450Please respect copyright.ＰＥＮＡＮＡ9gHIPtLhTF
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延伸閱讀:450Please respect copyright.ＰＥＮＡＮＡIXAfAfu1zT
深入淺出–以中性pH7的方式染髮450Please respect copyright.ＰＥＮＡＮＡyt65A6n7Bb
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。450Please respect copyright.ＰＥＮＡＮＡjItmLf0TGw
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc450Please respect copyright.ＰＥＮＡＮＡRPGuEAKMzN
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。450Please respect copyright.ＰＥＮＡＮＡSfu94ZOdPx
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio450Please respect copyright.ＰＥＮＡＮＡymDvsydYiI
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。450Please respect copyright.ＰＥＮＡＮＡax8iiEt6r5
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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