Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-fingerprinting-752c698d24d2

What is a friction ridge?

A raised portion of the epidermis.

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  1. A raised portion of the epidermis ✔
  2. A groove in the skin
  3. A hair follicle

Why: Friction ridges are raised portions of the epidermis on digits, palms, and soles.

Huh, didn't know that: Friction ridges are raised portions of the epidermis on digits, palms, and soles.

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References

Answer: A raised portion of the epidermis. Friction ridges are raised portions of the epidermis on digits, palms, and soles.

  1. Fingerprint en.wikipedia.org/wiki/Fingerprint
    A friction ridge is a raised portion of the epidermis on the digits
    Checked 2026-11-07.

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