<Tr> <Th> TH </Th> <Td> H3. 12.00. 1.03001 </Td> </Tr> <Tr> <Th> FMA </Th> <Td> 70323 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> 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). </P>

What is the difference between the papillary layer and reticular layer