Circulatory System (Cambridge International IGCSE Biology)
Exam board Cambridge International · IGCSEUpdated 2026-08-28
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9.1.1· Describe the circulatory system as a system of blood vessels with a pump and valves to ensure one-way flow of blood
Circulatory system
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The circulatory system is an organ system, the role of which is to transport blood around the body
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Components of the circulatory system include:
- blood vessels
- a pump
- valves to ensure one-way flow of blood
The circulatory system consists of blood vessels and a pump
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