Skeletal System
Distal Articular Facet of First Metacarpal Bone
Facies articularis distalis ossis primi metacarpi
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The distal articular facet of the first metacarpal bone is the convex, inferior area of its head. It articulates with the proximal articular facet found on the proximal phalanx of the thumb, forming the first metacarpophalangeal joint.