This flashcard defines the atrioventricular (AV) valve as a heart valve situated between the atria and ventricles, crucial for preventing blood from flowing backward when the ventricles contract.
A heart valve located between each atrium and ventricle that prevents a backflow of blood when the ventricle contracts.
| Front | atrioventricular (AV) valve |
|---|---|
| Back | A heart valve located between each atrium and ventricle that prevents a backflow of blood when the ventricle contracts. |
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