Figure 2From: The normal human chondro-osseous junctional region: evidence for contact of uncalcified cartilage with subchondral bone and marrow spaces Histochemical staining of the COJ region of normal cartilage. (a & b) with H&E, (c) picro-sirius red and (d) toluidine blue. Prolongations of uncalcified cartilage are seen to dip down through the calcified cartilage and abut the marrow spaces at points indicated by the arrows.Back to article page