Medial cuneiform bone at a glance
- What it is
- The largest of the three cuneiform bones.
- Location
- Lies on the medial side of the midfoot between the navicular and the first metatarsal.
- Function
- Supports the medial arch and receives tendons of tibialis anterior and fibularis longus.
- Body system
- Skeletal · paired (left and right)
- FMA ID
- FMA24522 (Foundational Model of Anatomy)
Key facts
- It articulates with the first and second metatarsals.
- The Lisfranc ligament runs from its lateral surface to the base of the second metatarsal.
- A slip of the tibialis posterior tendon also inserts on it.
Clinical relevance
Rupture of the Lisfranc ligament or fracture-dislocation here (Lisfranc injury) is easily missed on X-ray.
Structures next to the medial cuneiform bone
The nearest named structures in the 3D model, measured from the centre of each part:
- Intermediate cuneiform bone · skeletal
- Deep plantar artery · cardiovascular
- Extensor hallucis brevis · muscular
- Navicular bone of foot · skeletal
- Dorsalis pedis artery · cardiovascular
- Plantar arch · cardiovascular
- Lateral cuneiform bone · skeletal
- Medial plantar artery · cardiovascular
- Abductor hallucis · muscular
- Dorsal venous arch of foot · cardiovascular
References
- Foundational Model of Anatomy: Medial cuneiform bone (FMA24522). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §7.1 Divisions of the Skeletal System. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.