Abduction and adduction of the fingers result from the contraction of which of the following muscles or sets of muscles?
ExplanationThe fingers are abducted/adducted by the interossei. Dorsal interossei ABduct ("DAB") and Palmar interossei ADduct ("PAD"). The lumbricals simultaneously flex the MCP hints while extending the PIP/DIP joints. Flexors digitorum superficialis and profundus serve to flex the digits. Flexor carpi ulnaris serves to flex and adduct the wrist.
