Isovolumetric relaxation is when the ventricles relax, closing the semilunar valves but remaining unable to open the AV valves, thus preventing blood flow in or out.
1. Ventricles relax but no blood enters 2. Ventricular pressure is low enough to close semilunar valves but is too high to open AV valves 3. Blood cannot yet enter or leave <img src="paste-fbb01a0b659eb18fd101f1fda6abc8156439e3b6.jpg">
| Front | Explain isovolumetric relaxation |
|---|---|
| Back | 1. Ventricles relax but no blood enters 2. Ventricular pressure is low enough to close semilunar valves but is too high to open AV valves 3. Blood cannot yet enter or leave |
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