Considering the Left Ventricle, Why Does Isovolumetric Ventricular Contraction Occur

question 161

Multiple Choice

Considering the left ventricle, why does isovolumetric ventricular contraction occur during ventricularsystole?

• A) The ventricle needs to pressurize the blood to close the aortic valve.
• B) Ventricular pressure is greater than atrial pressure so the ventricle cannot eject blood.
• C) The bicuspid valve needs time to shut before the ventricle can eject blood.
• D) Aortic pressure is higher than ventricular pressure and the ventricle must pressurize the blood to open the aortic valve.
• E) The ventricle is still filling with blood and therefore cannot eject blood during this time.

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