Dissection of lateral aspect of left leg

Peroneus brevis muscle

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Image #193-5

Dissection of lateral aspect of left leg

Peroneus brevis muscle

The peroneus brevis (14) has been uncovered by reflecting the peroneus longus posteriorly. The relations of the peroneus tertius (6) and the muscles of the anterior compartment of the leg to the peroneus brevis are also visible in the specimen.

1. Deep peroneal nerve
2. Head of fibula
3. Superficial peroneal nerve
4. Extensor digitorum longus muscle
5. Tibialis anterior muscle
6. Peroneus tertius muscle
7. Superior extensor retinaculum (divided)
8. Tendinous sheath of extensor digitorum pedis longus muscle
9. Fascia of dorsalis pedis
10. Muscular branch of superficial peroneal nerve (to peroneus longus muscle)
11. Peroneus longus muscle (reflected posteriorly)
12. Body of fibula (area of origin of peroneus longus muscle)
13. Posterior intermuscular septum
14. Peroneus brevis muscle
15. Fibula (subcutaneous part)
16. Tendo calcaneus (Achilles)
17. Upper pointer: Superior peroneal retinaculum Lower pointer: Lateral malleolus
18. Calcaneus
19. Peroneus longus muscle (tendon covered by inferior peroneal retinaculum)
20. Peroneus brevis muscle (tendon covered by inferior peroneal retinaculum)
21. Extensor digitorum brevis muscle
22. Tuberosity of 5th metatarsal bone