"A finger is a limb of the human body and a type of digit, an organ of manipulation and sensation found in the hands of humans ...
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and other primates.
Normally humans have five digits, the bones of which are termed phalanges, on each hand, although some people have more or fewer than five due to congenital disorders such as polydactyly or oligodactyly, or accidental or medical amputations. The first digit is the thumb, followed by index finger, middle finger, ring finger, and little finger or pinkie. According to different definitions, the thumb can be called a finger, or not." - (en.wikipedia.org 15.02.2020)
