What are the tiny ridges in the skin of the fingertip known as?

The tiny ridges in the skin of the fingertip are referred to as friction ridges. These unique patterns are formed during fetal development and are crucial for enhancing grip and increasing surface area on the skin. The term "friction" specifically relates to the function these ridges serve in providing traction when holding objects or navigating surfaces.

Friction ridges play a significant role in fingerprinting, as they create the distinct patterns used for identification purposes. Each person's friction ridge pattern is unique, making them a valuable tool in forensic science and criminal investigations.

Understanding the structure and significance of these ridges aids in recognizing their practical applications, particularly when it comes to identifying individuals through their fingerprints.