‘a’wave in JVP is seen in-
Correct Answer: Will be large when atria contracts against resistance
Description: The a wave is due to atrial systole.some blood regurgitates into great veins when the atria contract.In addition,venous flow stops, the resultant rise in venous pressure contributes to a wave. (Ganong&;s Reviw of medical physiology,23rd edition,pg no.512)
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