Circulatory system
Section: Biology | Syllabus: Cambridge IGCSE Combined Science (0653)
The Circulatory System
The circulatory system is a system of blood vessels with a pump (the heart) and valves to ensure the one-way flow of blood around the body.
- Blood vessels - arteries, veins and capillaries form a network throughout the body
- Heart (pump) - a muscular pump that generates pressure to drive blood flow
- Valves - prevent the backflow of blood, ensuring one-way circulation
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