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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 7.34

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 7.34

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1 . Lateral (third) cuneiform
2. Cuneocuboid ligament
3. Cuboid
4. Extensor digitorum brevis m.

5. Calcaneocuboid articulation
6. Interosseous talocalcaneal ligament
7. Tendon m. peroneus brevis
8. Calcaneus
9. Tendon m. peroneus longus
10. Lateral plantar nerve
11. Small saphenous v.
12. Tendon m. plantaris

13. Calcaneal tendon (Achilles)
14. Medial plantar nerve and a.
15. Posterior tibial a. and v.
16. Tendon m. flexor hallucis longus
17. Sustentaculum tali
18. Tendon m. tibialis posterior
19. Plantar calcaneonavicular ("spring") ligament

20. Medial (deltoid) ligament
21. Navicular
22. Tendon m. tibialis anterior
23. Great saphenous v.
24. Tendon m. extensor hallucis longus
25. Medial (first) cuneiform
26. Intermediate (second or middle) cuneiform
27. Dorsalis pedis a.
28. Second metatarsal base

This is the superior (proximal) surface of the next section, looking distally.

This section passes through the calcaneus (8); the navicular (21); the first (25), second (26), and third (1) cuneiform; and the cuboid (3) bones. It cuts the cuneocuboid ligament (2) and the calcaneocuboid articulation (5).

The cuneocuboid ligament (2) connects the apex of the lateral cuneiform with the distal half of the medial surface of the cuboid, Joining proximally with the plantar cuboideonavicular ligament. The calcaneocuboid articulation (5) is the meeting of the reciprocally matched surfaces of the calcaneus and the cuboid bones. The saddle-shaped cuboidal articular surface of the calcaneus meets the posterior articular surface of the cuboid. The articular capsule unites the bones through its attachments to the margins of the articular surfaces, except dorsally, where it is thickened and attached at some distance from the articular margins. Several ligaments are supplementary to the capsule, and these include the calcaneocuboid portion of the bifurcate, the long plantar, and the plantar calcaneocuboid ligaments.

The sustentaculum tali (17) is a well-marked process, located medially on the superior surface of the calcaneus. It projects transversely and bears an elongated concave middle talar articular surface, which matches reciprocally with the middle calcaneal articular surface of the head of the talus. This section passes below the articular surface.

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