Fig. 4.

Fibre orientation [deg] varies regionally and does not always follow a lateral inversion pattern for adjacent lamellae. (a) Alternating fibre orientation in the anterior region. Fibre orientation steepens (towards 90°) with AF depth. No notable variation observed within a single lamella for the anterior region. (b) Alternating orientation of fibres in the posterior-lateral region. Fibres in the >90° group steepen (yellow towards green) with AF depth whereas the <90° (blue) group appears to remain similar. (c) Probability distribution of anterior fibre orientation showed a shift towards more vertical orientation (peaks converge) with AF depth. The distribution is symmetrical for all depths i.e. orientation between consecutive lamella is a lateral inversion. (d) Overall posterior-lateral fibres were steeper when compared to anterior. The asymmetric distribution means that the fibres were orientated in a skewed lateral inversion i.e. one group is more vertical than the other as shown by arrow. The more vertical fibre group (shown by the arrow) also had a wider distribution indicating some variation within these lamellae. Distribution peaks converge with AF depth with a similar magnitude to anterior (Suppl. Fig. S12). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)