Lateral meniscus at a glance
- What it is
- The lateral meniscus is the smaller of the two knee menisci: a ring of fibrocartilage between the lateral condyles of the femur and tibia, closed off almost into a circle.
- Location
- It lies on the outer half of the tibial plateau. Its two horns attach close together on the intercondylar area of the tibia, the anterior horn just lateral to the anterior cruciate ligament.
- Function
- It deepens the tibial articular surface and absorbs shock by spreading load over a larger area.
- Body system
- Skeletal · paired (left and right)
- FMA ID
- FMA44631 (Foundational Model of Anatomy)
Key facts
- Its anterior and posterior roots are very close together, so it is shaped more like an incomplete circle than the open C of the medial meniscus.
- It is not attached to the fibular collateral ligament, and the popliteus tendon separates part of its posterior horn from the joint capsule, so it is more mobile than the medial meniscus.
Structures next to the lateral meniscus
The nearest named structures in the 3D model, measured from the centre of each part:
- Tibia · skeletal
- Femur · skeletal
- Popliteal artery · cardiovascular
- Anterior cruciate ligament · skeletal
- Popliteal vein · cardiovascular
- Medial meniscus · skeletal
- Posterior cruciate ligament · skeletal
- Rectus femoris · muscular
- Patella · skeletal
- Fibular collateral ligament · skeletal
References
- Foundational Model of Anatomy: Lateral meniscus (FMA44631). EMBL-EBI Ontology Lookup Service.
- Radiopaedia. Lateral meniscus.
- TeachMeAnatomy. The Knee Joint.
- 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.
- Browne K., Schlehlein H. (2026). 3D Reference Organ Set for Male, v1.10 (Visible Human Male). Human Reference Atlas 3D Reference Object Library, HuBMAP / NIH. 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.