Skeletal System
Proximal Articular Facet of Proximal Phalanx of Thumb
Facies articularis proximalis phalangis proximalis pollicis
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The proximal articular facet of the proximal phalanx of thumb is the concave, oval, superior area of its base. It articulates with the distal articular facet of the first metacarpal bone, forming the first metacarpophalangeal joint.
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Proximal Phalanx
The proximal phalanx is a tubular bone that consists of a base, a diaphysis, and a head.
