The contact between the articular cartilage and the medullary cavities of the bone.
D001842:Bone and Bones; D002356:Cartilage / Q000033:anatomy & histology*; D002358:Cartilage, Articular; D006652:Histological Techniques; D006801:Humans; D007596:Joints / Q000033:anatomy & histology*
CARTILAGE/anatomy and histology; JOINTS/anatomy and histology