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

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

Plate 7.38

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

Upper Left Quadrant	Lower Left Quadrant	Lower Right Quadrant	Upper Right Quadrant
1 . Arcuate and deep plantar aa. 2. Third metatarsal 3. Tendons mm. extensor digitorum longus and brevis 4. Fourth metatarsal 5. Dorsal interosseous mm. 6. Lumbrical mm.	7. Fifth metatarsal, tuberosity 8. Cuboid 9. Cuboid sulcus and cuboid 10. Tendon m. peroneus longus 11. Long plantar ligament 12. Quadratus plantae m. 13. Calcaneal tendon	14. Medial and lateral plantar aa. 15. Calcaneus, tuberosity 16. Tibial nerve and posterior tibial a. 17. Flexor retinaculum 18. Quadratus plantae m. 19. Abductor hallucis m. 20. Medial plantar nerves 21. Tendons mm. flexor digitorum longus and flexor hallucis longus 22. Deltoid ligament (medial ligament of the foot) 23. Tendon m. tibialis anterior	24. Tendon m. peroneus longus 25. First metatarsal 26. Tendon m. extensor hallucis longus 27. Deep plantar a. and tendon of m. extensor digitorum longus 28. Interosseous mm. and second metatarsal

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

This section passes through the tuberosity of the calcaneus (15) and the first (25), second (28), third (2), fourth (4), and fifth (7) metatarsals. It cuts the cuboid sulcus and the cuboid (8, 9) bone. It passes through the quadratus plantae (12, 18), interosseous (28), abductor hallucis (19), and lumbrical (6) muscles. The tendon of peroneus longus (10, 24) is identified.

The long plantar ligament (11) is a strong, dense band of fibers that is attached proximally to the whole plantar surface of the calcaneus between the medial and lateral processes of the tuberosity and a rounded eminence near the distal end of the bone. Most of the fibers pass distally and are fixed to the lateral two-thirds or more of the oblique ridge on the plantar surface of the cuboid, but some expand into a broad band and some are inserted onto the base of the second, third, fourth, and medial half of the fifth metatarsal bones. The expanded portion completes the canal for the peroneus longus tendon. From its plantar surface, the oblique head of adductor hallucis and flexor digiti minimi brevis muscles arise.

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