Combined Science GCSE
valves
What valves means in Combined Science GCSE, as defined for AQA.
Definitions of valves
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Reference: AQA
Folds of the inner lining in many veins that prevent backflow and keep blood moving towards the heart.
Structures in veins that prevent backflow of blood, ensuring blood returns to the heart.
Structures in the heart and veins that prevent the backflow of blood.
Topics that use valves
- The heart and blood vessels (AQA GCSE)
Related terms
Using valves in the exam
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