Circulation Around the Body (CIE IGCSE Biology)
Revision Note
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Biology Lead
Main Blood Vessels in the Body
- Blood is carried away from the heart and towards organs in arteries
- These narrow to arterioles and then capillaries as they pass through the organ
- The capillaries widen to venules and finally veins as they move away from the organs
- Veins carry blood back toward the heart
The circulatory system
Important Blood Vessels Table
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