What is an Arch in fingerprint patterns?

An arch in fingerprint patterns is defined by its unique structure, specifically characterized by ridges that enter from one side and exit on the opposite side without forming any prominent central core or whorl. This flowing pattern is distinct because it ascends in the center, creating a wave-like appearance that distinguishes it from other fingerprint patterns like loops and whorls.

The arch is one of the simpler types of fingerprint patterns and can be classified into two subcategories: plain arches and tented arches, both of which maintain the essential feature of ridges entering and exiting in a continuous flow rather than looping back or forming a central core. Recognizing this structural definition is critical for proper classification in forensic work, as it helps in the identification of individuals based on their unique ridge patterns.