Stedman's Medical Dictionary
Stedman's > A wave

A wave

  1. the initial negative deflection in the electroretinogram, presumably reflecting retinal photoreceptor activity;
  2. an atrial deflection in an electrogram recorded from within the atrium of the heart;
  3. the first positive deflection of the atrial and venous pulses due to atrial systole.



 

 

 

 

 

 



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