Abductor Hallucis

The abductor hallucis is an intrinsic muscle of the foot. It is located within the first (most superficial) plantar muscle layer of the foot.

• Attachments: Originates from the medial tubercle of the calcaneus, the flexor retinaculum and the plantar aponeurosis. It attaches to the medial base of the proximal phalanx of the great toe.
• Actions: Abduction and flexion of the great toe.
• Innervation: Medial plantar nerve (branch of the tibial nerve).
• Blood Supply: Medial plantar and plantar metatarsal arteries

By TeachMeSeries Ltd (2025)

Fig 1
The first layer of plantar muscles. The plantar aponeurosis has been cut to reveal the underlying flexor digitorum.