A fingerprint in its narrow sense is an impression left by the friction ridges of a human finger. In a wider use of the term, fingerprints are the traces of an impression from the friction ridges of any part of a human or other primate hand. A print from the foot can also leave an impression of friction ridges.
A friction ridge is a raised portion of the epidermis on the digits (fingers and toes), the palm of the hand or the sole of the foot, consisting of one or more connected ridge units of friction ridge skin. These are sometimes known as "epidermal ridges" which are caused by the underlying interface between the dermal papillae of the dermis and the interpapillary (rete) pegs of the epidermis. These epidermal ridges serve to amplify vibrations triggered, for example, when fingertips brush across an uneven surface, better transmitting the signals to sensory nerves involved in fine texture perception. These ridges may also assist in gripping rough surfaces and may improve surface contact in wet conditions.
Whorls Double :- The person having whorls double pattern are Cognitive Learner. A cognitive learner learns by inspirations which are mainly comprehended by you. You're goal oriented, self-demanding. It's easy to have subjective cognitions, which need to be modified by logical reasoning and evidence.
Peacock Whorl :- People having peacock whorl also falls under integrated learner but differ a lot from Composite Whorl and Composite Spiral. The person falling under this category is very presentable. These peoples are very creative and flexible and can adapt to any industry. They enjoy visual appreciation and are motivated by new environment.
Tented Arch :- The person having tented arch are Simple, settled, practical, and stubborn. Tend to have things done by steps. They repress their emotions and easily inconsistent. You learn better by repeated thinking, observing. Need Patience, Known to be very Philosophical, Reflective & Self Analytical.
Composite Spiral :- The individual falling under this category are also integrated learner but differ from composite whorl on various grounds. A person falling under this category plays a critical role in environment as they love talking and taking initiatives. These people can think from various perspectives and have excellent communication and co-ordination.
Ulnar loop :- The individual having ulnar loop are Affective Learner. An affective learner learns by imitations. You have strong imitative and creative abilities, but you learn both good and bad things. Environments play important roles for you. You value the relationships between friends.
Composite Whorl :-The person having composite whorl are integrated learner. The person falling under this category likes new challenges and ideas. The individuals are multi-tasking and are also very creative but they are not so focused and get bored easily.
Concentric Whorl :- The person having Concentric whorl are Goal-oriented, aggressive, decent and serious about images. Get motivated by strong self-consciousness. They are Curious, Enthusiast, Self-Motivated, Requires Logic & Reasoning.
Press Whorl :-The person having Press Whorl are Goal-oriented, aggressive, decent and serious about images. They are motivated with strong self-consciousness and eager to win. Focus on precision and details with carefulness. Very accurate.
Radial Loop :- The individual having Radial loop are Critical learner. A critical thinking learner has advantages in careful observations, logical ability and critical thinking ability, which help you learn by reverse reasoning. Searching for differences, you wish to have unique personal style. You tend to do things without concerning others.
Arch :- The person having arch pattern are Reflective Learner. A reflective learner learns like a sponge. You can comprehend something thoroughly and apply it practically with continued repetition of practice. You learn well in situations that enable you to follow a particular path. You learn better when there's someone to lead, teach and remind you.