1. Leg Three compartments Anterior = dorsiflexors, innervated by deep peroneal, blood supply from ant. tibial aa. Lateral = evertors of foot, innervated by superficial peroneal nerve, blood supply from peroneal aa. Posterior = plantar flexors, innervated by tibial nerve, blood supply from posterior tibial aa.

2. Compartments

4. Tibio-Fibular Joints Proximal, Middle (Interossseous Membrane), Distal Proximal = Head of Fibula with Lateral Condyle = Synovial Gliding A and P Ligaments Middle = Interosseous Membrane = Fibrous - purpose Distal = inferior fibula with inferior tibia – interosseous membrane and A and P Inferior tibiofibular ligaments – union and support essential for ankle stability

5. Proximal T – F Joint

6. Middle and Distal T – F Joints

7. All Three

8. Distal T- F Joint

9. Distal T – F Joint

10. Anterior Compartment General Innervation/Blood supply Muscles – note retinaculum Tibilais Anterior Extensor Hallicus Longus Extensor digitorum longus ? Extensor digitorum Brevis Anterior compartment syndrome Eccentric role of dorsiflexors drop foot

11. Anterior Compartment Muscles

12. Anterior Compartment

13. Lateral Compartment General innervation/blood supply Muscles – note retinaculum Peroneus (Fibularis) Logus Peroneus Brevis Peroneus Tertius

14. Lateral Compartment

16. Tendon Sheaths Lateral

17. Posterior Compartment Superficial, Intermediate and Deep Superficial Gastrocnemius Plantaris Intermediate Soleus Deep Popliteus Flexor digitorum longus Flexor hallicus longus Tibialis posterior

18. Superficial/Inter. Muscles

19. Superficial Muscles

20. Intermediate Muscles

21. Deep Muscles

23. Tendon Sheaths – Medial = Tom, Dick AN Harry

24. Blood Supply