乳头层（英语：papillary layer），是真皮的浅层，通过基膜与表皮连接[1]。乳头层主要由大量的结缔组织形成的真皮乳头构成，可供给表皮所需营养物质，运走代谢产物，感受触的刺激[2]。
参考资料
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
