pisiform bone
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Related to os pisiforme: pisiform bone, Carpals
pis·i·form bone
(pis'i-fōrm bōn)A small bone resembling a pea in size and shape, in the proximal row of the carpus, lying on the anterior surface of the triquetral, with which it articulates; it gives insertion to the tendon of the flexor carpi ulnaris muscle.