Plantar interossei muscles

View Related Images

Description:

Origin:
Plantar surface of the base and medial sides of the shaft of the metatarsal bones 3, 4, and 5

Insertion:
Medial side of the base of the proximal phalanges and extensor expansion of digits 3, 4, and 5

Actions:
Abducts toes

Nerve supply:
Lateral plantar nerve

Blood supply:
Branches of the posterior tibial artery