K H FUNG / SCIENCE PHOTO LIBRARY K H FUNG / SCIENCE PHOTO LIBRARY
Human hand bones and abstract graphics. There are eight wrist (carpal) bones, which articulate with the bones of the forearm (not shown) to form the wrist joint. From the carpal bones the five metacarpals of the back of the hand join to the phalanges, the finger bones. The thumb (right) has two phalanges, while the fingers have three.
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