Respiration + Heart

2. The voice box
3. The two upper chambers of the heart
6. When yeast respires without oxygen to produce alcohol (ethanol)
8. Carry blood back to the heart
10. This expands when inhaling
13. Where gas exchange occurs
14. An extremely small, thin blood vessel that allows oxygen to pass from blood into the tissues in the body. Waste products also pass from the tissues to here
21. A blood vessel that carries blood from the heart to the lungs, where the blood picks up oxygen and then returns to the heart
23. Causes cramps after exercising
24. ______ blood carries carbon dioxide
27. A type of respiration that does not use oxygen
28. Extension of the trachea that serves as the central passageway into the lungs
29. Carry blood away from the heart
30. Carries around the oxygen around the body
31. The thick wall of muscles that divides the heart into two parts

1. The smallest airways which lead to the tiny air sacs in the lungs
2. Pumps oxygen-rich blood out to the rest of the body
3. The major blood vessel that carries blood away from the heart to the rest of the body
4. The expiration of air, mainly carbon dioxide, out of the lungs
5. Has a chemical formula of C2H5OH
7. Located below the lungs; the major muscle of repiration; Goes downward when contracted
9. A large vein
11. Pumps red blood cells around the body
12. ______ blood carries oxygen
15. A type of respiration with carbon dioxide as its product
16. Other word for throat
17. Muscles that are around the rib cage that helps with inspiration and expiration
18. Carries oxygen-rich blood from lungs to the heart
19. A tube less then an inch in diameter which delivers air to the bronchus
20. Controls the flow of blood and prevents blood from flowing backwards
22. The place where anaerobic respiration takes place
25. The first gate of gases to move through
26. The reason why we still pant for 5 mins after exercising; the temporary oxygen shortage in the body tissues from exercise