A. Ventricles contract simultaneously, but the myocardial layer of the left ventricle is significantly thicker than that of the right ventricle. Compare the volume of blood and the pressure with which blood is ejected from the two ventricles during ventricular systole?

2. During a heart transplant, the vagus nerve is severed, so no parasympathetic impulses reach the transplanted heart. In the absence of therapeutic intervention, how would the heart rate of recently transplanted heart compare with the normal heart rate (unless or until nerve regrowth occurs)

3.Explain what makes the accumulation of fluid in the pericardial space a life-threatening situation

4. Explain the importance of Purkinje fibers