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。496Please respect copyright.ＰＥＮＡＮＡBUrVLVJvyC
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。496Please respect copyright.ＰＥＮＡＮＡLJeH69AROI
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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。496Please respect copyright.ＰＥＮＡＮＡLWMsUe2hku
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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。496Please respect copyright.ＰＥＮＡＮＡeVqqQparZD
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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。496Please respect copyright.ＰＥＮＡＮＡ26Yjij8nl5
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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。496Please respect copyright.ＰＥＮＡＮＡK6qohEpWQB
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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。496Please respect copyright.ＰＥＮＡＮＡlNtgqBbFwR
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虹膜越多黑色素的話，瞳色便會越漸啡黑。496Please respect copyright.ＰＥＮＡＮＡ5HyxqIRUjT
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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。496Please respect copyright.ＰＥＮＡＮＡg4MTOer2UG
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延伸閱讀:496Please respect copyright.ＰＥＮＡＮＡoVVqQQ7G3j
深入淺出–以中性pH7的方式染髮496Please respect copyright.ＰＥＮＡＮＡTKVTeXr4Jo
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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。496Please respect copyright.ＰＥＮＡＮＡEi5N5dewB5
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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。496Please respect copyright.ＰＥＮＡＮＡ9FvWtQcARc
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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/portfolio496Please respect copyright.ＰＥＮＡＮＡbRO9IqbyJC
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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。496Please respect copyright.ＰＥＮＡＮＡ9ZuE9ShaAN
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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