Proximal phalanx of the index finger

Phalanx proximalis digiti II manus

SkeletalSkeletonArmLeft and right

View left in 3D View right in 3D

What it is
Proximal 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
≈ 31 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 thumb, Middle phalanx of the index finger, Middle phalanx of the middle finger, Middle phalanx of the ring finger, Proximal phalanx of the middle finger, Proximal phalanx of the ring finger, Proximal phalanx of the thumb, Second metacarpal, Third metacarpal