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Slideshow: Lateral Leg

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Slideshow: Lateral Leg

The Funky Professor videos can be viewed here;
http://publishing.rcseng.ac.uk/journal/video?videoTaxonomy=FUNK

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Slideshow: Lateral Leg

  1. 1. Lateral Compartment of the Leg
  2. 2. The lateral compartment of the leg also known as •Fibular compartment or •Peroneal compartment
  3. 3. The lateral compartment of the leg also known as •Fibular compartment or •Peroneal compartment It is the smallest of the 4 compartments in the leg It contains 2 muscles that •evert the foot •plantarflex the ankle joint
  4. 4. The lateral compartment of the leg also known as •Fibular compartment •Peroneal compartment It is the smallest of the 4 compartments of the leg It contains 2 muscles that •evert the foot •plantarflex the ankle joint 1. Fibularis or Peroneus Longus 2. Fibularis or Peroneus Brevis
  5. 5. Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L
  6. 6. Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L
  7. 7. Septum Septum Interosseous membrane Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L
  8. 8. Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L Deep Posterior Compartment
  9. 9. Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L Deep Posterior Compartment
  10. 10. Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L Superficial Posterior Compartment Deep Posterior Compartment
  11. 11. Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L Deep Posterior Compartment Superficial Posterior Compartment Anterior Compartment
  12. 12. Tibi a Fibula Cross Section through middle of right leg looking up from foot anterioranterior posteriorposterior L A T E R A L M E D I A L Superficial Posterior Compartment Deep Posterior Compartment Lateral Compartment Anterior Compartment
  13. 13. Fibularis or Peroneus Longus Arises from -Head of the Fibula -Upper 2/3rds of the lateral surface of the Fibula
  14. 14. Arises from -head of the fibula and the -upper 2/3rds of the lateral surface of the fibula The tendon runs obliquely in the sole of the foot and inserts onto the -Medial cuneiform -base of 1st metatarsal Fibularis or Peroneus Longus
  15. 15. Fibularis or Peroneus Brevis Arises from the lower 2/3rds of the lateral surface of the shaft of the Fibula Where the muscles overlap, Peroneus Brevis is the anterior one and Peroneus Longus is the posterior one.
  16. 16. Arises from the lower 2/3rds of the lateral surface of the shaft of the fibula Inserts onto the styloid process at the base of the 5th metatarsal Fibularis or Peroneus Brevis Where these muscles overlap, Peroneus Brevis is the anterior one and Peroneus Longus is the posterior one.
  17. 17. Where the two tendons overlap behind the lateral malleolus Peroneus Brevis lies anterior to Peroneus Longus To help you remember, think of Peroneus Longus as ‘Lounging Behind’!
  18. 18. Peroneus Brevis lies anterior to Peroneus Longus Peroneus LongusPeroneus Longus tendontendon Peroneus Brevis tendonPeroneus Brevis tendon Lateral MalleolusLateral Malleolus (distal end of Fibula)(distal end of Fibula)
  19. 19. Both muscles are supplied by the Superficial Peroneal Nerve a terminal branch of the Common Peroneal Nerve
  20. 20. Both muscles are supplied by the Superficial Peroneal Nerve a terminal branch of the Common Peroneal Nerve It has an extensive sensory distribution to the •anterolateral aspect of distal part of the leg •dorsum of the foot
  21. 21. Both muscles are supplied by the Superficial Peroneal Nerve a terminal branch of the Common Peroneal Nerve It is sometimes referred to as the Musculocutaneous Nerve of the Leg It has an extensive sensory distribution to the •anterolateral aspect of distal part of the leg •dorsum of the foot
  22. 22. Summary of Muscles
  23. 23. Peroneus or Fibularis Longus Origin Head of fibula, upper 2/3rds of lateral fibular shaft surface Insertion Plantar posterolateral aspect of medial cuneiform and lateral side of 1st metatarsal base Action Everts foot and plantar flexes ankle, supports the transverse arch of the foot Nerve Supply Superficial peroneal nerve (L5, S1, S2) Blood Supply Anterior tibial and peroneal arteries Lateral Leg
  24. 24. Peroneus or Fibularis Brevis Origin Lower 2/3rds of lateral fibular surface; Insertion Lateral surface of styloid process of 5th metatarsal base Action Everts foot and plantar flexes ankle Nerve Supply Superficial peroneal nerve (L5, S1, S2) Blood Supply Muscular branches of peroneal artery Lateral Leg
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Slideshow: Lateral Leg The Funky Professor videos can be viewed here; http://publishing.rcseng.ac.uk/journal/video?videoTaxonomy=FUNK

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