The skeletal structure of human hand includes metacarpal bone, wrist bone and phalanx. At the bottom of the palm, there is a group of five metacarpals, which are connected with the carpal bones. The end of each metacarpal bone is connected with a phalanx to form a finger. Hamate (also called scaphoid) is located at the bottom of the palm. It is a small bone in the wrist, shaped like a boat. When a person opens his left hand, the ends of his five fingers will extend outward, corresponding to the ends of hamate. Hamate is located at the bottom of the palm and connected with the distal segment of the five fingers, so that the fingers can bend and stretch flexibly.