<prompt> What does C Wave in JVP indicate?Atrial contractionRapid Right ventricular fillingAtrial filling with the tricuspid valve closedBulging of the tricuspid valve into the right atrium  <response>: A, C and V waves of JVP occur secondary to pressure changes in the atria which are transmitted to the great veins. The c wave is the transmitted manifestation of the rise in atrial pressure produced by the bulging of the tricuspid valve into the atria during isovolumetric ventricular contraction. Ref: Ganongs Review of Medical Physiology, 23rd Edition, Chapter 31 