The dorsal region is occupied by the Extensor Hallucis Brevis and the Extensor Digitorum Brevis – Foot.
The muscles of the sole of the foot can be divided into four layers (from superficial to deep):
- First layer— Abductor Hallucis, Flexor Digitorum Brevis – Foot, Abductor Digiti Minimi – Foot;
- Second layer—Quadratus Plantae, Lumbricals – Foot (tendons of Flexor Hallucis Longus and Flexor Digitorum Longus – Foot pass through this layer)
- Third layer—Flexor Hallucis Brevis, Abductor Hallucis, Flexor Digiti Minimi Brevis – Foot;
- Fourth layer—Dorsal Interossei – Foot and Plantar Interossei – Foot (tendons of Tibialis Posterior and Peroneus Longus (Fibularis Longus) pass through this layer).