Rapid filling occurs when ventricular pressure drops low enough for the AV valves to open, allowing blood to rush from the atria into the ventricles.
1. Occurs as pressure in ventricles drop so AV valves can open 2. Blood rushes into ventricles from atria <img src="paste-fbb01a0b659eb18fd101f1fda6abc8156439e3b6.jpg">
| Front | Explain rapid filling |
|---|---|
| Back | 1. Occurs as pressure in ventricles drop so AV valves can open 2. Blood rushes into ventricles from atria |
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