“…Second, dura mater is significantly stiffer than brain tissue, and the magnitude of the difference increases as the size of the animal (and consequently thickness of the dura) increases (Galford and McElhaney, 1970;Ozawa et al, 2004;Fiford and Bilston, 2005;Maikos et al, 2008;Persson et al, 2010a,b). The rat cranial dura is ∼13 µm thickness and is only loosely adherent to the skull (Cemil et al, 2009). Experiments with uniaxial tension applied at low and high strain rates lead to the conclusion that "the rat dura mater is significantly stiffer than the CNS tissue it surrounds" (Fiford and Bilston, 2005;Maikos et al, 2008).…”