1. What is the structure labeled with the letter “A”?

2. Nose

3. Fill in the blank: Food + Oxygen  ___________ + ENERGY

4. Carbon Dioxide (CO 2 )

5. This is the gas that we inhale that our cells use to break down food to make energy

6. Oxygen

7. What is the structure labeled with the letter “D”?

8. Vocal Cords

9. These structures are tiny sacs in the lungs that exchange oxygen and carbon dioxide in our blood

10. Alveoli

11. What is the structure labeled with the letter “F”?

12. Voice Box

13. Fill in the blank: Food + ______  Carbon Dioxide + ENERGY

14. Oxygen

15. What is the structure labeled with the letter “H”?

16. Diaphragm

17. What is the structure labeled with the letter “B”?

18. Trachea

19. Fill in the blank: Food + Oxygen  Carbon Dioxide + _______

20. Energy

21. What is the structure labeled with the letter “C”?

22. Bronchi

23. This structure warms the air and has cilia and mucus to trap particles

24. Nose

25. What is the structure labeled with the letter “E”?

26. Pharynx or Throat

27. This structure is also known as the Windpipe

28. Trachea

29. What is the structure labeled with the letter “G”?

30. Alveoli

31. This structure is also known as the Throat

32. Pharynx

33. These structures split into small branches that carry air throughout the lungs

34. Bronchi

35. This structure is also known as the VOICE BOX

36. Larynx

37. This structure is a large muscle that controls breathing

38. Diaphragm

39. What is the structure labeled with the letter “I”?

40. Lung(s)

41. This is the main organ in our respiratory system; it inflates and deflates to bring air in and out

42. Lung(s)

43. These structures vibrate to make sound and allow us to talk

44. Vocal Cords

45. Fill in the blank: ____+ Oxygen  Carbon Dioxide + ENERGY

46. Food

47. Fill in the blanks: The process of combining oxygen and other chemicals to break down food and release energy in our cells is called ____________ ____________

48. Cellular Respiration

49. Fill in the blanks: ____________ ____________ is the term used to describe how much air we can hold in our lungs in one breath

50. Lung Capacity

51. Fill in the blanks: ____________ ____________ is the chemical that we used to test or indicate if we were exhaling carbon dioxide

52. Bromothyml Blue or BTB