dermal papillae
- 真皮乳头：位于真皮层的小突起，与表皮层的乳头相互连接。它们起到增加表面积、提供营养和氧气供应的作用。
Dermal papillae
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abstract:
In the human skin, the dermal papillae (DP) (singular papilla, diminutive of Latin papula, 'pimple') are small, nipple-like extensions (or interdigitations) of the dermis into the epidermis. At the surface of the skin in hands and feet, they appear as epidermal or papillary ridges (colloquially known as fingerprints).
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WordNet