| 1. | The air sacs in the lungs are correctly called:
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| 2. | Food is prevented from entering the trachea during swallowing by the:
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| 3. | Food is prevented from entering the nasal cavity during swallowing by the action of the:
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| 4. | The vocal cords are located in the upper portion of the:
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| 5. | The smallest diamater passageway from the following list is the:
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| 6. | When an individual is breathing at rest, he/she is inspiring and
expiring a volume of air called the:
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| 7. | Complete the following chemical equation:
Hb + O2 -------->_______
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| 8. | The majority of oxygen in the bloodstream is carried in red blood cells on a globular protein called:
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| 9. | When you eat "ribs" at a steakhouse, you are actually eating:
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| 10. | Which structure is used by an earthworm during gas exchange?
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| 11. | Which blood vessels directly receive the most oxygen from the alveoli?
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| 12. | The maximum volume of air an individual can exhale following a maximum inhalation is called:
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| 13. | When stretch receptors in the lungs sense that the lungs are full, nerve impulses travel up ______ to the _______.
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| 14. | The majority of carbon dioxide is carried through the bloodstream in the form of:
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| 15. | Emphysema is a breathing disorder in which the _________ break down so that the surface area for gas exchange is decreased.
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| 16. | When few nerve impulses travel down motor nerves from the breathing centre, this muscle relaxes:
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| 17. | HbCO2 is commonly known as:
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| 18. | Approximately ___ % of carbon dioxide is carried as HbCO2.
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| 19. | The respiratory system of mammals includes:
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| 20. | A standard test for carbon dioxide gas is to add it to __________ which will then turn cloudy.
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| 21. | Unlike humans, grasshoppers take air into their abdomens through tiny openings called:
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| 22. | Once air enters the abdomen of a grasshopper it travels through tiny tubes called:
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| 23. | Hemoglobin is a globular protein made of ____ polypeptide chain(s).
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| 24. | One hemoglobin molecule can carry _____ molecule(s) of oxygen.
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| 25. | The _______ membranes connect the lungs to the ribs so when the ribcage expands the lungs also do.
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| 26. | Fish are able to extract oxygen from water due to a process called:
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| 27. | Large organisms rely on the respiratory system to take in oxygen and then ______ system to deliver the oxygen to the tissues.
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| 28. | A cluster of many alveoli is most specifically called a(n):
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| 29. | Which lung volume approaches your vital capacity (in volume of air) during exercise?
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| 30. | You have to breathe because oxygen is needed for:
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