Flexor Digitorum Longus

Wikis > Anatomy > Muscles > Leg Muscles > Flexor Digitorum Longus


Flexor digitorum longus:
Proximal attachment – medial posterior of middle third of tibia
Distal attachment – base of distal phalanges of lateral 4 digits
Open chain function – flexes IPJ and MPJ’s; plantarflexes ankle
Nerve supply – tibial (S2, S1)
Arterial supply – posterior tibial artery
Flexor digitorum accessorius longus muscle – present in 2-8% more common unilaterally; variable origins; located poster to flexor hallucis longus; becomes tendinous at tarsal tunnel; insert into tendon of FDL just before it divides

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