Atrial pressure

Atrial pressure follows the events in the cardiac cycle. It forms three waves- a, c and v; sometimes y wave, which spill into the great veins such as the jugular veins (e.g. external jugular vein) and can be seen from there. In fact they are called jugular venous pulse or pressure.

a- follows atrial contraction. c wave is formed at the beginning of ventricular systole, while v is formed at the end of ventricular systole.

Jugular venous pulse

Venous physiology

       

 

 

 

 

 

 

 

 

 

 

 

 

 

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1 isovolumetric contraction 2 ejection 3 isovolumetric relaxation 4 rapid inflow 5 diastasis 6 atrial systole  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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