In [Bi,1] we deduced the force density of an internal constitutive law for a deformable medium, moving in IRn. The geometric type of the body was given by a smooth orientable compact manifold of dim n-1. In the normal component of that force density a pressure is hidden, which describes the energy needed to change the instantaneous volume of the deformable medium. In these notes this pressure will be exhibited. In addition to that a natural coefficient of viscosity, called the structural coefficient of viscosity will be exhibited in case that the internal constitutive law depends on an external parameter, namely a tangent vector of the phase space. We conclude by investigating the interplay between a densit map and scalar curvature, mostly in case of dim M
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