Proximal attachment – adjacent sides of two metatarsals
Distal attachment – lateral side of proximal phalanges of digits 2 to 4 and medial side of proximal phalanx of 2nd digit
Open chain function – abduction of digits from line of 2nd digit
Closed chain function – stabilises toes during propulsion
Nerve supply – lateral plantar
Arterial supply – dorsal metatarsal artery
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