Describe all the events (steps) that occur during a cardiac
cycle for mammals (organisms with a...
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Medical Sciences
Describe all the events (steps) that occur during a cardiaccycle for mammals (organisms with a double circulation), as well asthe opening and closing of all heart valves and the signals arisingfrom the SA and AV nodes How does this cycle contribute tometabolic homeostasis for our cells, and what is the purpose of thevalves?
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Events occuring during cardiac cycle 1 ATRIAL SYSTOLE The atria contracts due to wave of contraction stimulated by SA Node The blood is forced into ventricles as Bicuspid and Tricuspid valve are open 2 BEGINNING OF VENTRICULAR SYSTOLE The ventricles begin to contract due to wave of contraction stimulated by AV NODE The bicuspid and tricuspid
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