The Cardiac Cycle

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The cardiac cycle refers to the process of cardiac muscle contraction and the movement of blood through its .........
chambers
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One complete cardiac cycle represents the sequence of events involved in a .......... .............
single heartbeat
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The relaxation phase of cardiac muscle where the chambers fill with blood
Diastole
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The contraction phase of cardiac muscle where the blood is forcibly ejected into the aorta and pulmonary artery
Systole
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As the atria and then ventricles ......., they expand drawing blood into the atria
relax
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The pressure in the atria ........... opening AV valves
increases
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Blood .............. enters the ventricles
passively
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SL valves are closed to ........... blood from leaving the heart
prevent
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The atria contract, .......... remaining blood into the ventricles
forcing
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The ventricles contract, increasing the pressure closing the AV valves to prevent ........... into the atria
backflow
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SL valves are forced open as blood is ......... from the ventricles into the aorta and pulmonary artery
ejected
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Other cards in this set

Card 2

Front

One complete cardiac cycle represents the sequence of events involved in a .......... .............

Back

single heartbeat

Card 3

Front

The relaxation phase of cardiac muscle where the chambers fill with blood

Back

Preview of the front of card 3

Card 4

Front

The contraction phase of cardiac muscle where the blood is forcibly ejected into the aorta and pulmonary artery

Back

Preview of the front of card 4

Card 5

Front

As the atria and then ventricles ......., they expand drawing blood into the atria

Back

Preview of the front of card 5
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