<P> The somatosensory cortex representation of the hand is a dynamic reflection of the fingers on the external hand: in syndactyly people have a clubhand of webbed, shortened fingers . However, not only are the fingers of their hands fused, but the cortical maps of their individual fingers also form a club hand . The fingers can be surgically divided to make a more useful hand . Surgeons did this at the Institute of Reconstructive Plastic Surgery in New York to a 32 - year - old man with the initials O.G. . They touched O.G.'s fingers before and after surgery while using MRI brain scans . Before the surgery, the fingers mapped onto his brain were fused close together; afterward, the maps of his individual fingers did indeed separate and take the layout corresponding to a normal hand . </P> <P> Chimpanzees have lower limbs that are specialized for manipulation, and (arguably) have fingers on their lower limbs as well . The term' finger' is not applied to the digits of most other animals, such as canines, felines, or ungulates, none of which can engage in fine manipulation with their forelimbs as a primate can . </P> <P> A rare anatomical variation affects 1 in 500 humans, in which the individual has more than the usual number of digits; this is known as polydactyly . A human may also be born without one or more fingers or underdevelopment of some fingers such as symbrachydactyly . Extra fingers can be functional . One individual with seven fingers not only used them but claimed that they "gave him some advantages in playing the piano". </P> <P> Phalanges are commonly fractured . A damaged tendon can cause significant loss of function in fine motor control, such as with a mallet finger . They can be damaged by cold, including frostbite and non-freezing cold injury (NFCI); and heat, including burns . </P>

What do you call a man who does not have all his fingers in one hand
find me the text answering this question