- See:
Plantar Muscles of the Foot:
Origin: between the tendons of the
flexor digitorum longus, except the
1st, which arises from the middle side of the first tendon of
the flexor digitorum longus;
Insertion: on the medial side of the proximal phalanx, into the expansions
of the tendons to the
extensor digitorum longus of the 2nd to 5th toes.
Action: Flex the proximal phalanges on the metatarsals and extend the 2
distal phalanges of the 2nd to 5th toes.
Nerve Supply: 1st lumbricale: medial plantar,
L4,
L5;
2nd, 3rd, 4th lumbricales: lateral plantar,
S1,
S2; (See
innerv. misc. lower limb)
Synergists:
-
flexor digitorum brevis and longus for the metatarsophalangeal articulation,
-
extensor digitorum longus and brevis for the extensor function;
-
dorsal interossei and
plantar interossei;
