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).