7.2 Fingerprint Patterns

Why do humans have fingerprints?

• To protect fingers from injury

• To improve grip and prevent slippage

• For easy identification

• To help control body temperature

There are nearly 50 million fingerprint records in FBI database, and only a few identical prints have been found.

• True

• False

Which is not one of the Three Principles of Fingerprints?

• A fingerprint is an individual characteristic; no two fingers have yet been found to possess identical ridge characteristics.

• A fingerprint is easily matched to an individual without thorough examination

• A fingerprint will remain unchanged during an individual's lifetime.

• Fingerprints have general ridge patterns that permit them to be systematically classified.

How many classes of fingerprint patterns are there?

• One

• Two

• Three

• Four

What are the classes of fingerprints?

• Loops, whorls, and arches

• Loops, whorls, arches, and bridges

• Loops and whorls

• Loops, whorls, arches, and cores

The individuality of a fingerprint is determined by a careful study of its ridge characteristics and point-by-point analysis

• True

• False

What type of fingerprint pattern is shown here?

• Arch

• Loop

• Bridge

• Whorl

What type of fingerprint pattern is shown here?

• Arch

• Loop

• Bridge

• Whorl

What type of fingerprint pattern is shown here?

• Arch

• Loop

• Bridge

• Whorl

Which fingerprint pattern is most common?

• Arch

• Loop

• Bridge

• Whorl