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1 Anterior facet for the talus. Facies articularis talaris anterior. Small anterior articular surface for the head of the talus. A B

2 Middle facet for the talus. Facies articularis talaris media. Middle articular surface for the talus separated from the posterior facet by the sulcus calcanei. A B

3 Posterior facet for the talus. Facies articularis talaris posterior. Large posterior surface for articulation with the talus. A B

4 Sulcus tendinis m. peronei (fibularis) longi. Groove for the tendon of the peroneus longus muscle on the lateral aspect of the calcaneus below the peroneal trochlea. B

5 Peroneal trochlea. Trochlea peronealis (fibularis). Bony eminence above the groove for the tendon of the peroneus longus. It functions like a pulley for this muscle and attaches a part of the peroneal retinaculum. The peroneal brevis runs cranial to the trochlea. B

6 Facies articularis cuboidea. Cuboid articular surface forming the anterior aspect of the cal-caneus. A B

7 Navicular bone. Os naviculare. Bone medial to the head of the talus and the three cuneiform bones. C D

8 Tuberosity of navicular bone. Tuberositas ossis navicularis. Rough area on the inferome-dial aspect of the navicular bone, for attachment of the tibialis posterior muscle. It is palpable through the skin. D

9 Medial cuneiform. Os cuneiforme mediale. Most medial of the cuneiform bones, located between the navicular and the 1st metatarsal bones. Its wedge-shaped base is directed downward. C D

10 Intermediate cuneiform. Os cuneiforme intermedium. Middle cuneiform bone located between the navicular and 2nd metatarsal bones. Its wedge-shaped base is directed upward. C D

11 Lateral cuneiform. Os cuneiforme laterale. Most lateral cuneiform bone located between the navicular and 3rd metatarsal bones. Its wedge-shaped base is directed upward. C D

12 Cuboid bone. Os cuboideum. Bone found between the calcaneus and the fourth and fifth metatarsals. C D

13 Groove for tendon of peroneus longus. Sulcus tendinis musculi peronei (fibularis) longi. Groove on the inferolateral aspect ofthe cuboid that serves as a guide for the tendon. D

14 Tuberosity of cuboid. Tuberositas ossis cuboidei. Bony elevation on the inferior aspect of the cuboid bone proximal to the groove for the peroneus longus. D

15 Calcanean process. Processus calcaneus. Plantar process of the cuboid bone. The inferior segment of the proximal articular surface projects upwardly and obliquely to support the cal-caneus. D

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