Key term for Edexcel GCSE Biology, used in The Circulatory System.
Blood vessels that carry blood towards the heart at low pressure; they contain valves to prevent backflow.
Veins appears in Edexcel GCSE Biology revision content for Exchange and Transport in Animals, especially The Circulatory System and Heart and Circulatory System.
Create a free account to access Edexcel GCSE Biology revision notes, track progress, and practise related key terms.