(A) Analysis of shape index of HAAECs on the inner and outer walls of curvature following 24hr of flow conditioning at an inlet WSS of 10dyne/cm2 (n = 3, mean SI ± SEM). The inner wall in the Dean’s flow region had a significantly higher SI than the inlet inner wall (Bonferroni post-hoc test, P<0.05). The developing and Dean’s flow regions also exhibited a significantly higher SI on the inner wall compared to the outer wall in the same region (Bonferroni post-hoc test, P<0.05 and P<0.05, respectively). Representative images used for analysis from Developing Flow region, with direction of flow indicated, in the (B) inner wall of curvature (average shape index = 0.51) and (C) outer wall of curvature (average shape index = 0.34) with direction of flow identified with an arrow.