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Unformatted text preview: During Isovolumetric Relaxation, what closes the semilunar valves? 7. During Isovolumetric Relaxation, what opens the AV valves? 8. Why is hypertension hard on the heart? 9. Looking at the ventricular volume graph, the stroke volume is approximately how many ml? ________ 10. During the four phases listed below, state whether the AV and semilunar valves are opened or closed: AV valves Semilunar valves Ventricular Filling Isovolumetric Contraction Ventricular Ejection Isovolumetric Relaxation...
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- Spring '08
- Physiology, ventricular systole, isovolumetric relaxation, contraction ventricular ejection, Ventricular Volume graph, ventricular __________. b.