A single [[bone]] of a [[finger]] or toe. The plural of '''phalanx''' is phalanges. Humans have two phalanges in each thumb and big toe; the remaining fingers and toes all have three phalanges. The synovial joints between phalanges are the knuckles. The phalanges are named according to their digit and position: proximal (closest to the body), middle, and distal (closest to the finger- or toetip).
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A [[bone]] of a digit, ([[finger]] or [[toe]]). The plural of '''phalanx''' is phalanges. Humans have two phalanges in each thumb and big toe; the remaining fingers and toes all have three phalanges. The synovial joints between phalanges of a digit (interphalangeal) and the phalanges and metacarpals are the knuckles. The phalanges are named according to their digit and position: proximal (closest to the body), middle, and distal (closest to the fingertip or toetip). A number is added to indicate which digit a phalanx is located: in humans, the thumb or big toe is I and the last is V.
Phalanx bones are named after the military phalanx, which is a tight formation of infantry in regular rows and files.
Phalanx bones are named after the military phalanx, which is a tight formation of infantry in regular rows and files.