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image: Lumbricals


 Articulations :

 Action :

  • Flex the metatarsophalangeal joint, extend the proximal interphalangeal & distal interphalangeal joints of digits 2&minus

Origin :

  • Tendons of the flexor digitorum longus.

Insertion :

  • Medial side of the extensor expansion of digits 2−5.

Innervation :

  • Medial (1st) lumbrical: medial plantar nerve; lateral three lumbricals: lateral plantar nerve.

Depth :

  • Superficial
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