Biology Crossword

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Across
  1. 3. A lung disease resulting from the inhalation of asbestos particles
  2. 11. Lung inflammation caused by viral or fungal infection
  3. 13. Feedback that reduces the output of a system
  4. 18. Each of the functional units in the kidney
  5. 19. The process of breathing
  6. 20. A capsule-shaped membranous structure surrounding the glomerulus of each nephron in the kidneys
  7. 24. Structure for breathing
  8. 25. The sampling of amniotic fluid using a hollow needle inserted into the uterus, to screen for developmental abnormalities in a fetus
  9. 27. Enzyme that breaks down carbohydrates
  10. 28. Makes up the pleural cavity that surrounds the lungs
  11. 32. Anti diuruetic hormone
  12. 33. Each of a pair of organs in the abdominal cavity
  13. 36. A small structure located just below the hypothalamus
  14. 38. Used as a method of treatment for sufferers of asthma
  15. 39. The process of a women menstruating monthly
  16. 41. A steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy
  17. 43. The separation of particles in a liquid on the basis of differences in their ability to pass through a membrane
  18. 44. A porous device for removing impurities or solid particles from a liquid or gas passed through it
  19. 45. The process that starts with fertilisation and ends with conception
Down
  1. 1. The release of eggs from the ovary
  2. 2. A hereditary disorder affecting the exocrine glands. It causes the production of abnormally thick mucus
  3. 4. The extent of a 2-dimensional surface enclosed within a boundary
  4. 5. Inflammation of the mucous membrane in the bronchial tubes
  5. 6. Used to send vital substances from the mother to the developing foetus
  6. 7. Enzyme that breaks down proteins
  7. 8. A gas used within respiration
  8. 9. A disease caused by the formation of cancerous cells in the lugs
  9. 10. A respiratory condition marked by spasms in the bronchi of the lungs
  10. 12. A short, microscopic, hairlike vibrating structure (e.g: eyelash)
  11. 14. The exchange of gases
  12. 15. The process of sperm fertilising the eggs
  13. 16. The muscle that separates the chest cavity from the abdomen
  14. 17. Used to prevent conception taking place
  15. 21. Formed in the ovary
  16. 22. The thin layer of tissue forming the natural outer covering of the body of a person or animal
  17. 23. The process of inhaling gases, oxygen in particular
  18. 25. These are found within the lungs
  19. 26. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  20. 29. A nitrogen-containing substance normally cleared from the blood by the kidney into the urine
  21. 30. A bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver
  22. 31. The passive movement of particles from an area of higher concentration to lower concentration
  23. 34. A gas which is one of the products of exhalation
  24. 35. Enzyme used to break down proteins
  25. 37. Produce sperm in the male reproductive system
  26. 40. Also known as the womb
  27. 42. The process of releasing gases, carbon dioxide in particular