This preview shows page 1. Sign up to view the full content.
Unformatted text preview: 225.7% change. d) Pumping work is area under the solid curves. Work before: 10850 mmHg mL, Work after: 16200 mmHg mL. Ritter 4.14 Contractility is defined on a pressure volume curve as the slope of the left ventricular pressure volume points connected at endsystole after an experiment in which afterload is increased. Be able to draw this slope on a pressure volume diagram. Ritter 4.20 a) Power = 0.976 Watts b) Total metabolic energy = 11.16 Watts c) Change in pressure during isovolumic contraction is approx 90 mmHg. Transmural pressure difference is 89 mmHg. Use Laplaces equation for the heart (provided in the class slides) and a wall thickness of 1.5 cm to compute wall stress....
View
Full
Document
This note was uploaded on 11/14/2011 for the course ECE 3820 taught by Professor Wang during the Fall '11 term at GWU.
 Fall '11
 Wang

Click to edit the document details