Flexor Digitorum Brevis

Region: Leg & Foot Muscles · All leg & foot muscles

Flexor Digitorum Brevis at a glance

OriginMedial process of the calcaneal tuberosity and the plantar aponeurosis
InsertionSides of the middle phalanges of toes 2–5 (splitting for the long flexor tendons)
ActionsCurls the lesser toes at their middle joints
Nerve supplyMedial plantar nerve (S2–S3)

◆ Good to know

The foot's counterpart of the hand's superficialis — sitting in the middle of the sole, it is the muscle pierced in plantar fasciitis injections nearby (the fascia, not the muscle, is the usual pain source).

Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.