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Across 1. requiring an absence of free oxegyn 3. move our travel with great speed or force 4. a special course of food eaten to lose weight or for medical purposes 6. a structure in the human body where 2 parts of the skeleton are fitted together 7. able to maintain physical activity for a long period of time 8. ready to engage in physical activity 10. having the ability to move fast 12. a liquid which forms seas, rivers and creeks 14. being able to lift large amounts of weight 16. surrounded by a plasma membrane called the sarcolemma 18. have been harmed or damaged 19. a hard white tissue making up the skeleton in humans

Down 1. occurring only in the presence of oxegyn 2. disease inside the heart and blood vessels 3. unpleasant physical sensation caused by injury or ilness 5. an organ that pumps the blood through the circulatory system 9. an act of expanding one's limb or body 11. tissue in a humans body that has the ability to contract 13. suffer from a continuous pain 15. ability to move quickly and easily 17. a liquid that circulates through the veins of humans and animals