Point A shows the bicuspid valve closing, B the semi-lunar valve opening, C the semi-lunar valve closing, and D the bicuspid valve opening.
El punto A muestra el cierre de la válvula bicúspide, el B la apertura de la válvula semilunar, el C el cierre de la válvula semilunar y el D la apertura de la válvula bicúspide.
| Front | Idenitify the changes in valves at different points. |
|---|---|
| Back | A - bicuspid valve closes B - semi-lunar valve opens C - semi lunar valve closes D - bicuspid valve opens |
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