Figure 7.
A summary of mucus viscosity measurements as a function of shear rate performed on a variety of mucus secretions from different species, using various methodologies (source references cited in reference (Cone, 2005)). Viscosity decreases as shear rate increases, characteristic of a shear thinning behavior. At maximum physiological rates, mucus approaches the viscosity of water. Recovery after a removal of the shear rate is not depicted in the figure. Reprinted from reference (Cone, 2005), with permission from Elsevier.