Final answer:
Dermal papillae are the extensions of the dermis into the epidermis responsible for fingerprints.
Explanation:
The extensions of the dermis up into the epidermis that are responsible for fingerprints are called Dermal papillae. These dermal papillae contain capillaries and sensory touch receptors, providing a bumpy surface that interlocks with the epidermis. Fingerprints are unique due to the patterns created by these papillae, making them a means of identification.
Learn more about Dermis and fingerprints here:
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