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Across 1. The blood is transported all around the ________. 6. ________ are thick blood vessels. 8. _________ are thick blood vessels that you can easily feel in the form of a pulse. 9. From the heart, blood is transported all around the body, where oxygen is taken and replaced with _______ ________. 12. Veins have little ________, they appear to be more a blue colour than red. 14. The ________ ________ run throughout the body supplying oxygen to every cell in the body. 15. Capillaries allow oxygen and ________ to pass to the cells, and waste products and carbon dioxide to be removed from them. 16. _________ are thin blood vessels.

Down 2. Arteries transport __________ blood to the cells. 3. Veins ________ blood back to the heart from the cells. 4. ________ remove all the waste before it returns to the heart. 5. The _______ remove the carbon dioxide from the blood and refill it with oxygen. 7. This system is also known as the _____________ system. 10. Arteries are full of oxygen, they appear to be a _____ _____ colour. 11. The ______ pumps blood to the lungs. 13. The heart then _______ the blood around the body. 14. The _______ is cleaned in the kidneys to remove all the waste before it returns to the heart.