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Tarsus 3D

  • Description

    •   *The tarsus comprises seven tarsal bones arranged in two rows.
    •   *In the proximal row, the talus is above, and the calcaneus is below.
    •   *In the distal row, there are four tarsal bones, side by side. From the medial to lateral side, they are the medial cuneiform, the intermediate cuneiform, the lateral cuneiform, and the cuboid.
    •  *Another bone, the navicular, is interposed between the talus and the three cuneiform bones.                                                                                               
  • Talus
    • * It transmits the weight of the body fro:m the tibia to the foot and is the only tarsal bone without muscle attachments.
    • * It has a neck with a deep groove called the sulcus tali for the interosseous ligaments between the talus and the calcaneus.
    • * It has a body with a groove on its posterior surface for the flexor hallucis longus tendon.
    • * It has a head, which serves as the keystone of the medial longitudinal arch of the foot.                                                                                                    
  • Calcaneus
    • * It is the largest and strongest bone of the foot and lies below the talus.
    • * It forms the heel and articulates with the talus superiorly and the cuboid anteriorly. It provides an attachment for the Achilles tendon.
    • * It has a medial projection called the sustentaculum tali, which supports the head of the talus and has a groove on its inferior surface for the flexor hallucis longus tendon.                                                                                                                                                                                          
  • Navicular
    • * It is a boat-shaped tarsal bone lying between the head of the talus and the three cuneiform bones.                                                                                                                                                                                                                                                                                  
  • Medial Cuneiform
    • * It is a wedge-shaped bone that forms a part of the medial longitudinal and proximal transverse arches.
    • * It articulates with the navicular bone posteriorly and with metatarsal anteriorly.
    • * It provides attachment to the tibialis anterior, tibialis posterior, and peroneus longus.                                                                                                       
  • Intermediate Cuneiform
    • * It is a wedge-shaped bone that forms a part of the medial longitudinal and proximal transverse arches.
    • * It articulates with the navicular bone posteriorly and with metatarsal anteriorly.
    • * It provides attachment to the tibialis posterior.                                                                                                                                                                
  • Lateral Cuneiform
    • * It is a wedge-shaped bone that forms a part of the medial longitudinal and proximal transverse arches.
    • * It articulates with the navicular bone posteriorly and with metatarsal anteriorly.
    • * It provides attachment to the tibialis posterior.                                                                                                                                                               
  • Cuboid
    • * It is the most laterally placed tarsal bone and has a groove for the peroneus longus muscle tendon.
    • * It serves as the keystone of the lateral longitudinal arch of the foot.

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  • Description

    •   *The tarsus comprises seven tarsal bones arranged in two rows.
    •   *In the proximal row, the talus is above, and the calcaneus is below.
    •   *In the distal row, there are four tarsal bones, side by side. From the medial to lateral side, they are the medial cuneiform, the intermediate cuneiform, the lateral cuneiform, and the cuboid.
    •  *Another bone, the navicular, is interposed between the talus and the three cuneiform bones.                                                                                               
  • Talus
    • * It transmits the weight of the body fro:m the tibia to the foot and is the only tarsal bone without muscle attachments.
    • * It has a neck with a deep groove called the sulcus tali for the interosseous ligaments between the talus and the calcaneus.
    • * It has a body with a groove on its posterior surface for the flexor hallucis longus tendon.
    • * It has a head, which serves as the keystone of the medial longitudinal arch of the foot.                                                                                                    
  • Calcaneus
    • * It is the largest and strongest bone of the foot and lies below the talus.
    • * It forms the heel and articulates with the talus superiorly and the cuboid anteriorly. It provides an attachment for the Achilles tendon.
    • * It has a medial projection called the sustentaculum tali, which supports the head of the talus and has a groove on its inferior surface for the flexor hallucis longus tendon.                                                                                                                                                                                          
  • Navicular
    • * It is a boat-shaped tarsal bone lying between the head of the talus and the three cuneiform bones.                                                                                                                                                                                                                                                                                  
  • Medial Cuneiform
    • * It is a wedge-shaped bone that forms a part of the medial longitudinal and proximal transverse arches.
    • * It articulates with the navicular bone posteriorly and with metatarsal anteriorly.
    • * It provides attachment to the tibialis anterior, tibialis posterior, and peroneus longus.                                                                                                       
  • Intermediate Cuneiform
    • * It is a wedge-shaped bone that forms a part of the medial longitudinal and proximal transverse arches.
    • * It articulates with the navicular bone posteriorly and with metatarsal anteriorly.
    • * It provides attachment to the tibialis posterior.                                                                                                                                                                
  • Lateral Cuneiform
    • * It is a wedge-shaped bone that forms a part of the medial longitudinal and proximal transverse arches.
    • * It articulates with the navicular bone posteriorly and with metatarsal anteriorly.
    • * It provides attachment to the tibialis posterior.                                                                                                                                                               
  • Cuboid
    • * It is the most laterally placed tarsal bone and has a groove for the peroneus longus muscle tendon.
    • * It serves as the keystone of the lateral longitudinal arch of the foot.

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