Musculi interossei pedis
Stored in the spatia interossea metatarsi (intermetatarsal spaces) and there are three plantar and four dorsal.
Musculi interossei plantares[edit | edit source]
- I.–III. (numbered from the tibial side)
Origin: Tibial aspects of metatarsal bones III-V
Insertion: Tibial bases of proximal phalanges and extensor expansion of digits III-V
Innervation: n. plantaris lateralis (branch of nervus tibialis) (S1–S2).
Action: Toe flexion, toes adduction (grips the fan of the toes)
Musculi interossei dorsales[edit | edit source]
- I.–IV. (numbered from the tibial side)
Origin: Opposing sides of metatarsal bones I-V
Insertion:
I: Tibial base of proximal phalanx of the second digit
II-IV: Fibular bases of proximal phalanges and extensor expansion of digits II-IV
Innervation: n. plantaris lateralis (branch of nervus tibialis) (S1–S2).
Action:
Metatarsophalangeal joints II-IV: toe flexion, toe abduction (closing the fan of the toes) - musculi lumbricales pedis synergists
Interphalangeal joints II-IV: toe extension
Links[edit | edit source]
Sources[edit | edit source]
- ČIHÁK, Radomír – GRIM, Miloš. Anatomie. 2., uprav. a dopl edition. Grada Publishing, 2002. 470 pp. vol. 1. ISBN 80-7169-970-5.
References[edit | edit source]
- ↑ ČIHÁK, Radomír. Anatomie 1. 2. edition. Grada, 2001. 497 pp. ISBN 80-7169-970-5.