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. Author manuscript; available in PMC: 2016 May 2.
Published in final edited form as: Am J Obstet Gynecol. 2009 Feb 6;200(4):434.e1–434.e7. doi: 10.1016/j.ajog.2008.11.005

Figure 1. Load-displacement curves of the uterine cervix.

Figure 1

Representative load-displacement curves are shown for C57Bl/6 (Panel A) and MRL/MpJ+/+ (Panel B) at 3 days postpartum. The mid-slope of the regression lines of the linear ascending part of the curve (elastic phase) (shown in red) is a measure of material stiffness. The yield point (YP: moment when tissue changes its proprieties from elastic to plastic) and break point (BP: moment when tissue is physically disrupted) are indicated with arrows.