The Closing Of The Left Av Valve Occurs Near The Beginning Of __________.

(Correct Answer Below)

The Closing Of The Left Av Valve Occurs Near The Beginning Of __________.

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Ventricular systole is the contraction of the ventricle. This causes the pressure within the ventricle to quickly rise above that in the atrium, which in turn causes the AV valve to close. The closed AV valve ensures that blood is ejected into the aorta and not back into the atrium.

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