JEB -- Courtland et al. 206 (8): 1397 Figure IG6

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Fig. 6. 1-µm-thick toluidine blue-stained lateral resin section of lamprey annular cartilage showing a typical cartilage canal. Noncollagenous extracellular matrix (ECM), red blood cells (rbc), blood vessel (b), ground substance (g), collagen fibers (f). Scale bar, 70 µm.