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Proximal Phalanges

In anatomy, phalanx bones (plural phalanges) are bones that form the skeleton of the toes and the fingers. Proximal phalanges are closest to the main part of the foot and articulate with the metatarsals of the foot. The proximal phalanges of the foot are much shorter in length and laterally compressed than the proximal phalanges of the hand. The longest of the phalangeal series, these bones have wide bases, thin, quadrilateral shafts, and expanded heads. Articulations The proximal phalanges articulate with the metatarsal bones proximally and with the middle phalanges distally. The articulation between the proximal phalanges and middle phalanges in the four smaller fingers and toes is known as the proximal interphalangeal joint. The articulations between the proximal and distal phalanges in the thumb and big toe are known simply as interphalangeal joints