human_reference_atlas Homo sapiens metacarpal bone of digit 1 1 finger 1 metacarpus hand digit 1 metacarpal uberon FMA:23899 metacarpal 1 NCIT:C52796 metacarpal of thumb thumb metacarpal UMLS:C1708987 manual digit 1 metacarpus metacarpal bone of digit 1 A metacarpal bone that distally_connected_to a proximal phalanx of manual digit 1. metacarpal bone of first digit of hand first digit of hand metacarpal metacarpal bone of thumb hand digit 1 metacarpal bone metacarpal bone of digit I UBERON:0003645 EMAPA:19112 metacarpal I forelimb digit 1 metacarpus The first metacarpal bone or the metacarpal bone of the thumb is the first bone of the thumb. It is connected to the trapezium of the carpus at the first carpometacarpal joint and to the proximal thumb phalanx at the first metacarpophalangeal joint[Wikipedia:First_metacarpal_bone]. metacarpal of hand digit 1 MA:0001364 AS first metacarpal bone thumb metacarpal bone metacarpal bone of hand digit 1 AAO:0010616 metacarpal bone of digit 1 SCTID:181973009 first digit of hand metacarpal bone metacarpal of first digit of hand metacarpal bone digit 1 manus bone metapodium bone 1 manual digit metacarpus endochondral element