foot

O -Superolateral surface of the calcaneus

I -Base of proximal phalanx of great toe and lateral sides of the tendons of extensor digitorum longus of toes II to IV

In -Deep fibular nerve [S1, S2]

F -Extension of metatarsophalangeal joint of great toe and extension of toes II to IV

O -Medial process of calcaneal tuberosity

I -Medial side of base of proximal phalanx of great toe

In -Medial plantar nerve from the tibial nerve [S1, S2, S3]

F -Abducts and flexes great toe at metatarsophalangeal joint

O -Medial process of calcaneal tuberosity and plantar aponeurosis

I -Sides of plantar surface of middle phalanges of lateral four toes

In -Medial plantar nerve from the tibial nerve [S1, S2, S3]

F -Flexes lateral four toes at proximal interphalangeal joint

O -Lateral and medial processes of calcaneal tuberosity, and band of connective tissue connecting calcaneus with base of metatarsal V

I -Lateral side of base of proximal phalanx of little toe

In -Lateral plantar nerve from the tibial nerve [S1, S2, S3]

F -Abducts little toe at the metatarsophalangeal joint

O -Medial surface of calcaneus and lateral process of calcaneal tuberosity

I -Lateral side of tendon of flexor digitorum longus in proximal sole of the foot

In -Lateral plantar nerve from tibial nerve [S1, S2, S3]

F -Assists flexor digitorum longus tendon in flexing toes II to V

• O -First lumbrical-medial side of tendon of flexor digitorum longus associated with toe II;
• -Second, third, and fourth lumbricals-adjacent surfaces of adjacent tendons of flexor digitorum longus

I -Medial free margins of extensor hoods of toes II to V

• In -First lumbrical-medial plantar nerve from the tibial nerve;
• -Second, third, and fourth lumbricals-lateral plantar nerve from the tibial nerve [S2, S3]

F -Flexion of metatarsophalangeal joint and extension of interphalangeal joints

O -Plantar surface of cuboid and lateral cuneiform; tendon of tibialis posterior

I -Lateral and medial sides of base of proximal phalanx of the great toe

In -Medial plantar nerve from tibial nerve [S1, S2]

F -Flexes metatarsophalangeal joint of the great toe

O -Base of metatarsal V and related sheath of fibularis longus tendon

I -Lateral side of base of proximal phalanx of little toe

In -Lateral plantar nerve from tibial nerve [S2, S3]

F -Flexes little toe at metatarsophalangeal joint

• O -Transverse head-ligaments associated with metatarsophalangeal joints of lateral three toes;
• - Oblique head-bases of metatarsals II to IV and from sheath covering fibularis longus

I -Lateral side of base of proximal phalanx of great toe

In -Lateral plantar nerve from tibial nerve [S2, S3]

F -Adducts great toe at metatarsophalangeal joint

O -Sides of adjacent metatarsals

I -Extensor hoods and bases of proximal phalanges of toes II to IV

• In -Lateral plantar nerve from tibial nerve;
• -First and second dorsal interossei also innervated by deep fibular nerve [S2, S3]

F -Abduction of toes II to IV at metatarsophalangeal joints; resist extension of metatarsophalangeal joints and flexion of interphalangeal joints

O -Medial sides of metatarsals of toes III to V

I -Extensor hoods and bases of proximal phalanges of toes III to V

In -Lateral plantar nerve from tibial nerve [S2, S3]

F -Adduction of toes III to V at metatarsophalangeal joints; resist extension of the metatarsophalangeal joints and flexion of the interphalangeal joints