Distal phalanx of the fourth toe

Phalanx distalis digiti IV pedis

SkeletalSkeletonLegLeft and right

View left in 3D View right in 3D

What it is
Distal phalanx of the fourth toe: a short tubular bone ending in a tuft under the toenail.
Function
Toe bones help balance and push off during the last phase of each step.
Size
≈ 9 mm long
Clinical note
The little toe's middle and distal phalanges are fused in many adults.