Tibia
Except for the femur, the tibia is the largest weight-bearing bone in the body. It is located on the anteromedial side of the leg. It has two epiphyses and a diaphysis. It articulates proximally with the femur and fibula and distally with the talus and fibula.
Proximal Epiphysis
- Lateral Condyle – Eminence that articulates with the lateral condyle of the femur
- Medial Condyle – Eminence that articulates with the medial condyle of the femur
- Intercondylar eminence – located between the two condyles
- Tibial tuberosity – large oblong elevation that attaches to the patellar ligament
- Fovea fibular – site of the tibia that articulates with the fibula (lateral to the tibial tuberosity)
Distal Epiphysis
- Medial malleolus – pyramidal process
- Fossa for Talus – articulates with the talus
- Fibular Notch – site of articulation with the fibula
Body
- Anterior Edge – crest (most prominent)
- Medial Edge – smooth and rounded
- Lateral Border – interosseous crest (thin and prominent)
- Posterior surface – presents the line of the soleus muscle
- Lateral face – narrower than medial face
- Medial Face – smooth, convex and wide
The Tibia articulates with three bones: Femur, Fibula and Talus.
TIBIA - ANTERIOR, SIDE AND REAR VIEW |
Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21 ed. Rio de Janeiro: Guanabara Koogan, 2000. |