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Cardiac Cycle - Coggle Diagram

- - - - Blood flows in the atria from the veins with high pressure
        
        since the pressure is high and rises it flows to the ventricles where the pressure is lowered
- - - - pressure rises
        
        blood is pushed from atria --> ventricles, Atrioventricular valves are open
        
        semilunar valves are closed. ventricles relax
- - - - volume decreases
        
        blood is pushed out of the heart and into the arteries
        
        AV valves are shut
        
        blood enters the atria from the pulmonary veins
        
        semilunar valves are open