Figure 2
From: Longitudinal residual strain and stress-strain relationship in rat small intestine
Photograph of specimen from the distal ileum(left) and duodenum (right) in small organ bath containing the Krebs solution. Top: the no-load state of the intestinal segment (about 3–4 mm in length) with longitudinal image (a) and cross-sectional image (b). Bottom: the longitudinal zero-stress state was obtained by cutting the segment (a) into longitudinal strips. The bending angle φ < 180° (c) and >180° (d).