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