<prompt> In JVP c wave indicates which of the following cardiac events?Atrial fillingAtrial contractionVentricular fillingVentricular contraction  <response>: The c wave is the transmitted manifestation of the rise in atrial pressure produced by bulging of the tricuspid valve into the atria during isovolumetric contraction. a wave is atrial systole, v wave rise in atrial pressure before tricuspid valve opens during systole. 