Across
- 3. carries oxygenated blood from the lungs to the heart
- 5. when the heart stops beating
- 6. the organ that pumps blood around the body
- 7. artificially giving someone antigens/dead pathogens to cause an immune response, leading to immunity
- 14. stop blood flowing backwards from the aorta and pulmonary artery into the ventricles
- 16. blood vessel with elastic walls and carries oxygenated blood at high pressure
- 17. the type of white blood cell that engulfs and digests pathogens
- 18. the blood vessel that carries blood from the heart to the liver
- 23. the chambers where blood enters the heart
- 24. the type of white blood cell that releases antibodies and antitoxins
- 25. this is required by large organisms to transport substances because they have a low surface area to volume ratio
- 26. the chamber that holds oxygenated blood and pumps it around the body
- 31. carries deoxygenated blood from the heart to the lungs
- 33. blood vessel with valves, a large lumen and carries deoxygenated blood at low pressure
- 37. the blood vessels which supply blood to the heart muscle
- 39. stop blood flowing backwards from the ventricles into the atria
- 42. carries oxygenated blood from the heart to the body
- 44. the organ system that protects us from disease
- 45. this happens when we cut ourselves to prevent blood loss and infection
- 46. a chemical marker on a cell that identifies it
Down
- 1. a substance made by lymphocytes that binds to toxins
- 2. a specialised cell that fights pathogens
- 4. the shape of a red blood cell that increases its surface area to volume ratio
- 8. a disease causing by a build-up of fatty material/cholesterol in the coronary arteries
- 9. the component of blood that releases chemicals to help our blood clot
- 10. when the blood supply to the heart is blocked
- 11. the chambers that pump blood out of the heart
- 12. a specialised cell that carries oxygen in the blood
- 13. the chamber that collects oxygenated blood from the lungs
- 15. supplies blood from the heart to the kidneys
- 19. a cell produced from lymphocytes that causes immunity for many years
- 20. the liquid component of blood that carries glucose, urea, carbon dioxide and heat
- 21. the chemical in red blood cells that binds to oxygen
- 22. the chamber that holds deoxygenated blood and pumps it to the lungs
- 26. the hole in the middle of a blood vessel
- 27. returns blood from the kidneys to the vena cava
- 28. the tissue that the heart is made from
- 29. the blood vessel that carries blood from the digestive system to the liver
- 30. the chamber that collects deoxygenated blood from the body
- 32. the blood vessel that carries blood from the heart to the kidneys
- 34. blood vessel with walls one cell thick and exchanges substances with tissues
- 35. flaps of tissue that prevent blood flowing backwards
- 36. the blood vessel that carries blood from the liver to the heart
- 38. a waste product that is carried in the plasma
- 39. a protein made by lymphocytes that binds with the antigens of a pathogen
- 40. the blood vessel that carries blood from the kidneys to the heart
- 41. cava carries deoxygenated blood from the body to the right atrium
- 43. when you have memory cells so can fight off a pathogen before you get ill