Flexor digitorum brevis
Feet
Deep muscle — it lies under other muscles. X-ray makes the muscles over it see-through.
- Origin
- Inner process of the calcaneal tuberosity and the plantar aponeurosis
- Insertion
- Middle phalanges of toes 2 to 5
- Action
- Flexes the four small toes
- Nerve supply
- Medial plantar nerve (S1–S3)
The central muscle of the first layer of the sole, just under the plantar fascia. It curls the small toes and helps the foot grip.
Flexor digitorum brevis anatomy page →