真皮
真皮層（英語：dermis）是位于表皮与皮下组织之间的一层皮肤，其由两层组成——乳头层与网状层。真皮的结构组成是膠原蛋白、弹性纤维以及基质。汗腺、皮脂腺、頂泌腺、毛囊都起源于真皮 。
参考文献
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