Middle phalanx of the middle finger

Phalanx media digiti III manus

SkeletalSkeletonArmLeft and right

View left in 3D View right in 3D

What it is
Middle phalanx of the middle 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
≈ 22 mm long
Clinical note
Each finger has three phalanges but the thumb only two (14 per hand).