Organ systems KS3

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Across
  1. 4. the cell that carries oxygen around the body
  2. 6. found in the veins so low pressure blood can go back to the heart.
  3. 9. the muscles that contract and relax to raise and lower the rib cage
  4. 11. carries deoxygenated blood around the body and transports blood into the heart
  5. 13. connects muscles to bones
  6. 14. The role of the skeleton to keep us upright
  7. 15. the chamber where oxygenated blood enters the heart from the lungs
  8. 16. the vessel that brings blood from the lungs back to the heart
  9. 19. A group of tissues working together to perform a function
  10. 20. the joint of the neck
  11. 23. The role of the skeleton to allow oxygen to circulate around the body
  12. 26. The movement of Oxygen into the blood from the lungs and CO2 out of the blood into the lungs
  13. 27. the organ where blood becomes oxygenated
  14. 30. connects bones to bones
  15. 31. the joint of the wrist
  16. 32. the immune defence of the human body
  17. 34. The main gas excreted from the body
  18. 38. Muscles work in these
  19. 40. the blood vessel that brings blood from the body to the heart
  20. 41. A group of organs working together to perform life processes
Down
  1. 1. pumps blood from the heart to the lungs
  2. 2. the blood vessel that carries blood from the heart to the lungs
  3. 3. The joint of the hip and shoulder
  4. 5. A group of organ systems working together to produce this.
  5. 7. A group of similar cells working together to perform a function
  6. 8. The role of the skeleton to help us to displace ourselves
  7. 10. the capsule found around all joints
  8. 12. found between the atriums and ventricles, this structure prevents backflow of blood in the heart
  9. 16. a straw coloured liquid that contains all dissolved nutrients
  10. 17. a gas not used by our bodies it makes up 78% of air
  11. 18. The role of the skeleton to help organs
  12. 21. the main artery that carries blood from the heart to the body
  13. 22. carries oxygenated blood around the body and transports blood away from the heart
  14. 24. the chamber that pumps blood from the heart to the rest of the body
  15. 25. form a web like fibre to help clot blood and form scabs
  16. 28. a smooth surface found at the end of bones to provide frictionless movement in a joint
  17. 29. The most useful gas in air makes up 21% of it
  18. 33. The joint of the elbow
  19. 34. the simplest unit of a living organism
  20. 35. the chamber blood enters the heart from the body
  21. 36. the divide between the left and right side of the heart
  22. 37. the joints found in the skull
  23. 39. the main muscle that contracts to expand the thoracic cavity