Proximal Articular Facet of Middle Phalanx of Middle Finger
Facies articularis proximalis phalangis mediae digiti medii manus
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The proximal articular facet of middle phalanx of the middle finger is the pulley-shaped, oval, superior area of its base. It articulates with the distal articular facet of the proximal phalanx of the middle finger, forming the proximal interphalangeal joint of the middle finger.