Edexcel GCSE Combined Science · 1SC0
Paper 1, Paper 2
Revise: Blood and the Circulatory SystemValves prevent blood from flowing backwards, which is especially important when pressure is low.
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GCSE Combined Science · key term
A structure that prevents backflow of blood, maintaining flow in one direction.
Used by Edexcel
Paper 1, Paper 2
Revise: Blood and the Circulatory SystemValves prevent blood from flowing backwards, which is especially important when pressure is low.
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