Cardiac Cycle

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1. 1 2022 Body Fluids and Circulation #
   Which one of the following statements is correct?
   A Increased ventricular pressure causes closing of the semilunar valves

   B The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction

   C The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria

   D Blood moves freely from atrium to the ventricle during joint diastole.
   Check Answer

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