Representative histological sections (20 × magnification) and corresponding FCFM images. Fibres were thin and loosely organized in the 'wispy' group (a), whereas these were thick and linearly organized into a layer in the 'lamellar' group (c). No specific pattern was present in the FCFM images of the 'wispy' group (d). Individual thick lines in layer-form were observed in FCFM images of the 'lamellar' group (f). Patterns of the 'mixed' group were a combination of those seen in the 'wispy' and 'lamellar' groups (b, e).