Middle phalanx of the index finger

Phalanx media digiti II manus

SkeletalSkeletonArmLeft and right

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What it is
Middle phalanx of the index finger, a short long bone with a concave base and a pulley-shaped head.
Function
Forms a lever of the finger moved by the long flexor and extensor tendons.
Size
≈ 20 mm long
Clinical note
Each finger has three phalanges but the thumb only two (14 per hand).

Nearby skeletal structures Distal phalanx of the index finger, Distal phalanx of the little finger, Distal phalanx of the middle finger, Distal phalanx of the ring finger, Distal phalanx of the thumb, Middle phalanx of the middle finger, Middle phalanx of the ring finger, Proximal phalanx of the index finger, Proximal phalanx of the middle finger, Proximal phalanx of the ring finger