What does 'C' Wave in JVP indicate?
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: Ganong's Review of Medical Physiology, 23rd Edition, Chapter 31
Atrial contraction
Rapid Right ventricular filling
Atrial filling with the tricuspid valve closed
Bulging of the tricuspid valve into the right atrium
Bulging of the tricuspid valve into the right atrium