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==Key Stage 4==
[[File:CirculatorySystemCirculatorySystemDiagram.png|right|300px|thumb|A diagram showing the circulatory system including the [[heart]] and [[Blood Vessel|blood vessels]].]]
===Meaning===
The '''circulatory system''' is a transport system found in some [[animal]]s used to transport [[oxygen]], [[nutrient]]s, [[waste]] and [[hormone]]s around the body.
===About the Circulatory System===
: The '''circulatory system''' consists of the [[heart]], [[artery|arteries]], [[vein]]s and [[capillary|capillary]].