What reinforces and protects the ends of the fingers' digits and are used for scraping and manipulating small objects?
1 Answer
Nov 12, 2015
You are asking about our "fingerprints".
Explanation:
These are really called friction ridges of any part of a human or other primate hand.
They are genetically determined features that develop before birth.
These epidermal ridges serve to amplify vibrations triggered, when fingertips brush across an uneven surface.
Making it easier transmitting the signals to sensory nerves involved in fine texture perception.
They may also assist in gripping rough surfaces and may improve surface contact in wet conditions.
