Cuboid bone
The cuboid bone (also cuboid , Latin Os cuboideum or Os tarsale quartum ) is one of the tarsal bones and lies between the heel bone ( calcaneus ) and the 4th and 5th metatarsal bones .
On the front (distal) side of the cuboid bone there are two joint surfaces for the 4th and 5th metatarsal bones separated by a furrow, with which the cuboid bone forms the outer tarsometatarsal joint .
On the (medial) surface facing the inner edge of the foot there is a joint surface for the outer sphenoid bone . Sometimes there is also an articular surface for the navicular bone here .
The (lateral) side of the cuboid bone towards the outer edge of the foot is slightly concave and short. In this area, the tendon of the long fibula muscle is deflected around the outer edge of the foot.
On the lower (plantar) surface there is a small ridge -shaped hump, the tuberositas ossis cuboidei . Deep layers of the long sole ligament ( ligamentum plantare longum ) attach to the cusp . In front of the tuberosity (distal) there is a tendon furrow ( sulcus tendinis musculi peronaei longi ) for the tendon of the long fibula muscle ( musculus peroneus longus ). This tendon furrow is closed to form a tunnel by superficial layers of the long sole ligament that extend from the tuberosity to the bases of the metatarsal bones. The tendon of the long fibula muscle runs in a tendon sheath that only lies in the groove in certain foot positions. The tuberosity is partially covered with cartilage and the tendon sheath slides on it.
Individual evidence
- ↑ Cube Bone - Biology. Retrieved July 14, 2020 .