Science Crossword

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Across
  1. 1. a partition separating two chambers, such as that between the nostrils or the chambers of the heart.
  2. 3. is defthat collects dust, germs and other matter that has invaded the lungs and is what we expel when we sneeze and cough. ined as a common, chronic respiratory condition that causes difficulty breathing due to inflammation of the airways.
  3. 8. is a serious respiratory disease, which is another form of COPD. The most common cause is smoking.
  4. 9. is the part of the genetic makeup of a cell.
  5. 13. trait or gene.
  6. 17. system The body system responsible for gas exchange between the body and the external environment.
  7. 20. system The body system responsible for carrying blood, nutrients, and waste throughout the body.
  8. 25. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
  9. 27. branching blood vessels that form a network between the arterioles and venules.
  10. 29. the passing on of physical or mental characteristics genetically from one generation to another.
  11. 31. supplied, treated, or enriched with oxygen.
  12. 32. is inflammation of the epiglottis
  13. 36. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
  14. 39. having two different alleles of a particular gene or genes.
  15. 41. an excessive localized enlargement of an artery caused by a weakening of the artery wall.
  16. 42. any of the class of soluble, crystalline, typically sweet-tasting carbohydrates found in living tissues and exemplified by glucose and sucrose.
  17. 44. a colorless crystalline compound
  18. 45. Cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs.
  19. 46. the continuous motion by which the blood travels through all parts of the body under the action of the heart.
  20. 48. is a common lung disease caused by an infection in the air sacs in the lungs.
  21. 49. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Down
  1. 2. valve which control blood flow out of the ventricles.
  2. 4. failure means that the heart is not pumping blood around the body as efficiently as it should.
  3. 5. Structures of the lung where gas exchange occurs.
  4. 6. having two identical alleles of a particular gene or genes.
  5. 7. Lower chamber of the heart
  6. 10. sometimes called chronic bronchitis or emphysema, is a chronic and progressive disease where the air flow in and out of the lungs decreases, making it harder to breathe.
  7. 11. blood pressure (hypertension) means the force or pressure of the blood flowing through the vessels is consistently too high.
  8. 12. Ischemia means the heart muscle is not getting enough oxygen to function properly.
  9. 14. a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary.
  10. 15. contain the pigment hemoglobin, which imparts the red color to blood.
  11. 16. ventricle pumps the oxygen-poor blood to the lungs.
  12. 18. muscular-walled tubes forming part of the circulation system
  13. 19. the membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane.
  14. 21. aneurysms affect the main artery in the body. It means the artery wall has weakened, allowing it to widen or "balloon out."
  15. 22. the study of heredity and the variation of inherited characteristics.
  16. 23. valve prolapse means the mitral valve bulges out or prolapses because it does not close evenly. The mitral valve pumps freshly oxygenated blood out of the heart to the rest of the body.
  17. 24. receives deoxygenated blood from the body
  18. 26. can happen when one of the vessels that lead to the brain either becomes blocked by a blood clot or bursts.
  19. 28. is a hardening of the arteries.
  20. 30. is the molecule that contains the genetic code of organisms.
  21. 33. inflammation of the mucous membrane in the bronchial tubes
  22. 34. Cancer Symptoms can take years to appear, but include things like chronic coughing, changes in voice, harsh breathing sounds and coughing up blood.
  23. 35. valve which control blood flow from the atria to the ventricles.
  24. 37. an air passage to the lungs and holding the vocal cords in humans
  25. 38. is a sticky fluid that collects dust, germs and other matter that has invaded the lungs and is what we expel when we sneeze and cough.
  26. 40. the act of inhaling and exhaling
  27. 43. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
  28. 44. the colorless fluid part of blood, lymph, or milk.
  29. 47. It is the carrier of genetic information.