The carpal tunnel is an opening in the wrist that allows for the passage of the nerves, tendons and blood vessels that supply the hand. The opening is formed by the carpal bones of the wrist, plus a connective tissue sheath. Carpal tunnel syndrome is attributed to swelling and inflammation of the carpal tunnel, which constricts an already limited space. The compression leads to irritation of the median nerve and tendons as they pass through the carpal tunnel. This irritation is usually associated with repetitive activities involving the small muscles of the hand, such as typing, knitting or sewing.
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