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Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 7. Lower Limb

Atlas of Human Anatomy in Cross Section: Section 7. Lower Limb

Plate 7.28

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S.
Peer Review Status: Externally Peer Reviewed

Plate 7.28

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Superior extensor retinaculum (transverse crural ligament)
2. Great saphenous v. and saphenous nerve

3. Tendon m. tibialis posterior
4. Tendon m. flexor digitorum longus
5. Posterior tibial a. and v.
6. Tibial nerve
7. Tendon m. plantaris
8. Calcaneal (Achilles) tendon (mm. gastrocnemius and soleus)

9. Small saphenous v. and sural nerve
10. Flexor hallucis longus m.
11. Peroneus brevis m.
12. Peroneus longus m.
13. Lateral calcaneal a. and v.
14, Posterior tibiofibular ligament and tibiofibular syndesmosis

15. Perforating br. of peroneal a.
16. Anterior tibiofibular ligament
17. Peroneus tertius m.
18. Tibia
19. Tendons m. extensor digitorum longus
20. Tendon m. extensor hallucis longus
21. Tendon m. tibialis anterior

This section passes through the lower tibiofibular articulation at about its middle third. The tibiofibular syndesmosis (14) is formed between the distal ends of the tibia and fibula. The two bones are united by the anterior (16) and posterior (14) tibiofibular ligaments and remnants of the interosseous membrane. Occasionally, a synovial articulation occurs in this position. The tendon of the plantaris muscle continues at the medial border of the calcaneal tendon (Achilles) (8). Note that the tendon of extensor digitorum longus has divided into four tendons (19). The lateral compartment muscles (peroneus longus [12] and brevis [11]) now occupy a position posterior to the tibia and fibula, a place shared with flexor hallucis longus (10), the tendon of flexor digitorum longus (4), tibialis posterior (3), the tibial nerve (6), the posterior tibial (5) and lateral calcaneal blood vessels (13), and the calcaneal tendon (Achilles) (8).

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