ABSTRACT

The hand is probably the most complex of all anatomical structures in the human body. Along with the

brain, it is the most important organ for accomplishing the tasks of exploration, prehension, percep-

tion, and manipulation, unique to humans. The importance of the hand to human culture is empha-

sized by its depiction in art and sculpture, its reference frequency in vocabulary and phraseology, and

its importance in communication and expression (Chao et al., 1989). The human hand is distinguished

from that of the primates by the presence of a strong opposable thumb, which enables humans

to accomplish tasks requiring precision and fine control. The hand provides humans with both

mechanical and sensory capabilities.