(Color online) (a) Midpoint surface displacement x as a function of the supraglottal/subglottal pressure ratio pe/ps for three area ratios a1/a2, with Ps = 1.0 kPa, L = 1.0 cm, T = 0.3 cm, and k = 50 N/m. (b) Coronal view of right vocal fold medial surface displacements for convergent (top), rectangular (middle), and divergent (bottom) pre-pressure shapes. The tail of the arrows indicates no pressures applied (muscular adduction only). The remaining medial surface lines are for pe/ps = 0, 0.5, and 0.7.