part of part of Homo sapiens tibia zone of long bone soleal line of tibia 2026-03-19T00:00:00Z A zone of bone organ forming an oblique ridge on the posterior surface of the proximal tibial shaft, running from the fibular facet of the lateral condyle downward and medially to the medial border of the tibia. It marks the proximal attachment of the soleus muscle and the transverse intermuscular septum separating the superficial and deep posterior compartments of the leg. David Osumi-Sutherland