Chapter 19: Timing of Blood Flow
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11 Terms
atrial pressure > ventricular pressure
The atria fill, so how does this affect atrial and ventricular pressure?
the atrioventricular valves open
When the atrial pressure is greater than the ventricular pressure, what happens?
blood flows into the ventricles
When the atrioventricular valve opens, what happens?
ventricular pressure > atrial pressure
The ventricles fill, so how does this affect atrial and ventricular pressure?
the atrioventricular valves close
When the ventricular pressure is greater than the ARTIAL pressure, what happens?
the ventricles contract
When the atrioventricular valve closes, what happens?
ventricular pressure > arterial pressure
When the ventricles contract, what happens to ventricular and ARTERIAL pressure?
the semilunar valves open
Once ventricular pressure exceeds arterial pressure, pressure within the great vessels in the pulmonary trunk within the aorta increase. What happens as a result?
blood flows out of the ventricles into the arteries
Once the semilunar valves open, what happens?
arterial pressure > ventricular pressure
The arteries are filled with blood and the ventricles are now empty. What happens to ventricular and ARTERIAL pressure?
the semilunar valves close
Once arterial pressure exceeds ventricular pressure, what happens?
Note 
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