Cuboid bone

In the human body, the cuboid bone is one of the seven tarsal bones of the foot.

Structure

The cuboid bone is the most lateral of the bones in the

The posterior surface is smooth, triangular, and concavo-convex, for articulation with the anterior surface of the calcaneus (the calcaneocuboid joint); its infero-medial angle projects backward as a process which underlies and supports the anterior end of the calcaneus.

The anterior surface, of smaller size, but also irregularly triangular, is divided by a vertical ridge into two facets, forming the fourth and fifth tarsometatarsal joints: the medial facet, quadrilateral in form, articulates with the fourth metatarsal; the lateral, larger and more triangular, articulates with the fifth.

The medial surface is broad, irregularly quadrilateral, and presents at its middle and upper part a smooth oval facet, for articulation with the

Muscle attachments

Only one muscle is attached to the cuboid bone; the

In a condition known as cuboid syndrome, the cuboid can be subluxated downward causing a swollen kind of ache along the central portion of the lateral border of the foot.

See also

• Bone terminology
• Cuboid fracture
• Terms for anatomical location
• Knucklebones (precursor of gaming dice)

References

This article incorporates text in the public domain from page 269 of the 20th edition of Gray's Anatomy (1918)

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