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。500Please respect copyright.ＰＥＮＡＮＡXn3DSBsHCk
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。500Please respect copyright.ＰＥＮＡＮＡfxMcGqw1l8
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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。500Please respect copyright.ＰＥＮＡＮＡGYMbBRr5WB
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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。500Please respect copyright.ＰＥＮＡＮＡodcwjXfc7r
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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。500Please respect copyright.ＰＥＮＡＮＡ3WC8gSvkyQ
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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。500Please respect copyright.ＰＥＮＡＮＡ9Oxzoaf9g8
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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。500Please respect copyright.ＰＥＮＡＮＡzy0C6yoh8v
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虹膜越多黑色素的話，瞳色便會越漸啡黑。500Please respect copyright.ＰＥＮＡＮＡjimNkQ9Gpg
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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。500Please respect copyright.ＰＥＮＡＮＡzJOuh8RAOM
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延伸閱讀:500Please respect copyright.ＰＥＮＡＮＡvpSIvXwT5G
深入淺出–以中性pH7的方式染髮500Please respect copyright.ＰＥＮＡＮＡJ4VBzBM0cU
- 分享自 LIHKG 討論區500Please respect copyright.ＰＥＮＡＮＡDGuc4MDQQJ
https://lih.kg/2268429500Please respect copyright.ＰＥＮＡＮＡU8xJjhOvUz
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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。500Please respect copyright.ＰＥＮＡＮＡwkgaPYsehz
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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/toc500Please respect copyright.ＰＥＮＡＮＡyMyRKOO2YJ
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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。500Please respect copyright.ＰＥＮＡＮＡAM0h6z59TX
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Link:500Please respect copyright.ＰＥＮＡＮＡDB4Lt5OdyP
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio500Please respect copyright.ＰＥＮＡＮＡoXHohQgsDn
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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。500Please respect copyright.ＰＥＮＡＮＡEvrvsR0HIA
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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