Key term for Edexcel GCSE Biology, used in The Circulatory System.
Valves located between the atria and ventricles (tricuspid and bicuspid) that prevent backflow into the atria.
Atrioventricular (AV) valves appears in Edexcel GCSE Biology revision content for Exchange and Transport in Animals, especially The Circulatory System and Heart and Circulatory System.
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