Anatomy (Bones and Muscles) · MU Sofia

52. Muscles, fasciae and synovial sheaths of foot. Configuration, mechanics and deformations of the foot.

Covers the intrinsic foot muscles by compartment, with tables giving origin, insertion, innervation and function for the dorsal muscles, the plantar layers and the interossei. It then describes the foot fascia, naming the extensor, flexor and fibular retinacula and the canals each forms for tendons, plus the plantar aponeurosis. Synovial sheaths are touched on briefly with a picture only.

Inside: 5 sections · 11 labelled pictures · 5 tables · 11 flashcards · 5 min

Topic 49 of 49 in the MU Sofia syllabus for Anatomy (Bones and Muscles) (Medicine, Years 1 and 2). The free AceMed note covers it in 5 sections, about 203 words (5 min of reading), with 11 flashcards.

In this note

  1. FOOT MUSCLES (intrinsic muscles)
  2. Dorsal compartments :
  3. Planter Compartment :
  4. FOOT FASCIA
  5. Synovial sheaths :

FOOT MUSCLES (intrinsic muscles)

- The muscles acting on the foot can be divided into extrinsic & intrinsic muscles. } = hand

* Extrinsic muscle : muscles that originate outside of a specific region and insert onto structures within that region.

* Intrinsic m : originate & insert onto the same region.

Planter Compartment :

1st layer :

"AFA"

2nd layer :

3rd layer :

"FAF"

4th layer :

FOOT FASCIA

The fascia of the leg continues down and form a thickened fascia, band of fibers that protects and organize the tendons going down to the foot. these band called Retinaculum.

  1. 1. Superior Extensor Retinaculum
  2. 2. Inferior Extensor Retinaculum :

form 4 canals for the tendons of the extensor muscles :

  1. 1st canal → tendons of tibialis anterior
  2. 2nd canal → Extensor Hallucis longus
  3. 3rd → Dorsalis Pedis art. / vein of fibular n.
  4. 4th → Extensor Digitorum Longus.
  5. 3. Flexor Retinaculum (on the medial side)

forms 4 canals :

  1. 1st → tendons of tibialis posterior
  2. 2nd → tendons of flexor digitorum longus
  3. 3rd → tibialis posterior art. / vein of tibial n.
  4. 4th → tendons of flexor hallucis longus.
  5. 4. Superior & inferior fibular Retinaculum (lateral side)

they contain tendons of the fibularis longus & fibularis brevis.

  • Planter Aponeurosis (Planter side)

Continue reading free

The whole note, all 5 sections, is free with an AceMed account, with its 11 flashcards. Premium adds flashcard recall, highlights and Ask AI.

Start freeAlready a member? Open the note