Questions and Answers
What is anthropometry?
The study of the proportions and/or measurements of the human body.
What type of fingerprint pattern has one or more ridges enter on one side and exit on the same side?
What is a delta in fingerprint analysis?
A small pattern point where two lines diverge.
What is the core of a fingerprint?
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What percentage of people have a whorl fingerprint pattern?
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What is the description of an arch fingerprint pattern?
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What are fingerprints?
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What is a micron?
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What does dactyloscopy refer to?
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What is a latent print?
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What is ninhydrin used for?
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What are bifurcations?
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What does minutiae refer to?
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What is a plastic print?
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What characterizes a visible print?
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What is a plain arch fingerprint pattern?
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What defines a tented arch fingerprint pattern?
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What is an ulnar loop?
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What is a radial loop?
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What is an accidental whorl?
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What is a double loop whorl?
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What characterizes a central pocket whorl?
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Who developed the anthropometric system?
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What is the Henry Classification used for?
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Study Notes
Fingerprinting Concepts
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Anthropometry: Study of human body proportions and measurements; derives from Greek meaning "man."
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Loop: Predominant fingerprint pattern where ridges enter and exit the same side; found in 65% of people.
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Delta: Diverging point in fingerprint patterns; each individual has at least one.
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Core: Central point in fingerprint patterns; varies in shape and size, not always present.
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Whorl: Fingerprint pattern with ridges forming a complete circle; observed in 30% of the population.
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Arch: Pattern where ridges enter on one side and exit on the opposite side; only 5% of people have this pattern.
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Fingerprints: Unique impressions crucial for individual identification; considered a reliable forensic tool.
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Microns: Measurement unit equating to one millionth of a meter; important for measuring the fine details of fingerprints.
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Dactyloscopy: Scientific study of fingerprints; originated in the 16th century.
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Latent Print: Invisible fingerprints to the naked eye; often require special techniques like tape lifting for collection.
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Ninhydrin: Biochemical reagent that reveals fingerprints by turning them purple, known as Ruhemann's purple.
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Bifurcations: Two-pronged fork-shaped indentations in fingerprint ridges; common feature in fingerprint analysis.
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Minutiae: Specific characteristics of fingerprint ridges; detail-oriented aspect of fingerprint identification.
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Plastic Print: Physical impression of a fingerprint, often created in materials like wax or clay; critical for suspect identification.
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Visible Print: Fingerprints made visible by touching colored substances, such as blood or ink.
Fingerprint Patterns
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Plain Arch: A smoother arch pattern; more common variant among arches.
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Tented Arch: An arch with a notable rise; recognized as a rarer arch type.
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Ulnar Loop: A loop opening towards the pinky finger; indicates the loop pattern's orientation.
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Radial Loop: Loop that opens towards the thumb; distinct in its arrangement.
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Accidental Whorl: A uniquely-shaped whorl that does not conform to standard categories; considered to be coincidental in formation.
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Double Loop Whorl: Features two distinct loops, each having its own core; relatively common fingerprint pattern.
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Central Pocket Whorl: Defined by having at least two deltas and one ridge; distinct personal characteristic.
Historical and Classification
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Alphonse Bertillon: Innovator of the anthropometric system for identification purposes; served as a French police officer.
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Henry Classification: A method for organizing fingerprints; remains a fundamental tool in forensic science today.
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Description
Test your knowledge on key concepts from Chapter 4 related to fingerprinting! This quiz covers important terms and definitions such as anthropometry, loop patterns, and deltas. Perfect for students studying forensic science or criminal justice.