Editing Cuboid bone (section)

==Structure==
The cuboid bone is the most lateral of the bones in the [[Anatomical terms of location#Proximal and distal|distal]] row of the [[tarsus (skeleton)|tarsus]]. It is roughly  cubical in shape, and presents a prominence in its inferior (or plantar) surface, the tuberosity of the cuboid. The bone provides a groove where the tendon of the [[peroneus longus muscle]] passes to reach its insertion in the [[First metatarsal bone|first metatarsal]] and [[medial cuneiform bone]]s.<ref>{{cite book|last1=Moore|first1=KL.|last2=Dalley|first2=AF.|last3=Agur|first3=AM.|date=2013|title=Clinically Oriented Anatomy, 7th ed.|publisher=Lippincott Williams & Wilkins |pages=524|isbn=978-1-4511-8447-1}}</ref>

===Surfaces===
The '''dorsal surface''', directed upward and lateralward, is rough, for the attachment of ligaments.

The '''plantar surface''' presents in front a deep groove, the peroneal sulcus, which runs obliquely forward and medialward; it lodges the tendon of the [[peroneus longus]], and is bounded behind by a prominent ridge, to which the long plantar ligament is attached.

The ridge ends laterally in an eminence, the '''tuberosity''', the surface of which presents an oval facet; on this facet glides the sesamoid bone or cartilage frequently found in the tendon of the peroneus longus. The surface of bone behind the groove is rough, for the attachment of the plantar [[calcaneocuboid ligament]], a few fibers of the [[flexor hallucis brevis]], and a fasciculus from the tendon of the [[tibialis posterior]].

The '''lateral surface''' presents a deep notch formed by the commencement of the peroneal sulcus.

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 [[lateral cuneiform bone|third cuneiform]]; and behind this (occasionally) a smaller facet, for articulation with the [[navicular bone]]; it is rough in the rest of its extent, for the attachment of strong interosseous ligaments.

{{Further|Dorsal cuneocuboid ligament}}

===Muscle attachments===
Only one muscle is attached to the cuboid bone; the [[Tibialis posterior muscle|tibialis posterior]]. The tibialis posterior inserts to the under surface of the cuboid bone.<ref name=Bojsen>{{cite book |last=Bojsen-Møller |first=Finn  |last2=Simonsen |first2=Erik B. |last3=Tranum-Jensen |first3=Jørgen| year=2001 |title=Bevægeapparatets anatomi |edition=12th |language=Danish |trans-title=Anatomy of the Locomotive Apparatus | isbn =978-87-628-0307-7|page=293 }}<!--|accessdate=February 28, 2012--></ref> While the flexor hallucis brevis arises, by a pointed tendinous process, from the medial part of the under surface of the cuboid bone, from the contiguous portion of the [[lateral cuneiform bone]], and from the prolongation of the tendon of the tibialis posterior.{{citation needed|date=February 2013}}