![]() The thumb and fingers are the last section consisting of 5 bones numbered in the sense that your thumb is 1 st and your little pinkie is your 5 th. The metacarpals connect at the base to the carpal bones and at the front to the thumb and fingers. The next section is the mid hand consisting of the 5 long metacarpal bones. They form two rows of four cube-like bones that on one side articulate with the radius and ulna bones of the forearm and on the other side articulate with the metacarpal bones. The 8 bones at the base of the hand form the wrist these bones are known as the carpal bones. The hand itself is made of 3 sections of different bones. A dislocated Thumb is the medical term used when the ligaments of the thumb (1st phalange) have been injured by being overstretched or torn to the extent that the two connecting bones have become dislodged and are no longer aligned as they should be.
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