Fig. 5From: Biomechanical simulation of thorax deformation using finite element approachRib motion generated by the intercostal muscles. The golden shape represents the state after muscle contraction; the blue shape represents the state before muscle contraction. a–c illustrate the inspiratory chest movement, and d–f illustrate the expiratory chest movement. a, d Front view, b, e rear view, c, f lateral viewBack to article page