SynDaver products may be substituted for traditional models in such tests by the nature of their similarity to the actual-use environment. This resemblance is characterized by matching the mechanical, physical and chemical properties, geometry and organ-to-organ interaction. On the simplest level, individual synthetic organs (rectus femoris muscle, small intestine, abdominal aorta, etc.) are constructed to ensure they replicate the geometry (shape, diameter, wall thickness, etc.) of a particular portion of the target anatomy. In addition, the individual synthetic tissue analogs used to fabricate these components are formulated so that they exhibit chemical and physical properties (water, fiber and salt content, as well as strength or modulus in shear, coefficient of static or dynamic friction, surface energy, dielectric properties, heat capacity, porosity, etc.) that mimic those of the target tissue. Finally, the components are assembled in such a way that the interaction between adjacent components is similar to that expected in the target tissue. That is, the body part is designed so that inter-facial properties, such as the coefficient of dynamic friction (inter-organ), and mechanical attachments also mimic those exhibited in the target anatomy.