<prompt> In the work of breathing, tissue resistance contributes ___ fraction:7142865  <response>: Work done load x displacement. In the context of lungs, load is analogous to pressure and displacement is volume expansion of lungs. Hence, work of breathing DP X DV. Thus, work done can be calculated as area covered under the inspiratory curve in compliance diagram. Of the total inspiratory work, 65 work is elastic work or compliance work. Remaining 35 is non-elastic work - 28 is airway resistance work, 7 is tissue resistance work. 