Abductor hallucis:
Proximal attachment – medial tuberosity of plantar aspect of calcaneus and flexor retinaculum
Distal attachment – medial side of proximal phalanx of hallux (combines with tendon of flexor hallucis brevis); some fibre attach to medial sesamoid
Open chain function – abduction and/or flexion of hallux
Closed chain function – stabilises the hallux in the direction of adduction and assists in stabilising the hallux on the ground; plantarflexes first ray; stabilises midfoot joints
Nerve supply – medial plantar (L5, S1, S2)
Arterial supply – medial plantar artery
http://www.fasebj.org/content/29/1_Supplement/864.2.short
http://www.jfootankleres.com/content/8/1/19/abstract
http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=4045
http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=86149
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