1. Which of the following structures connects the nose to the throat?

• a. nasopharynx
• b. oropharynx
• c. larynx
• d. laryngopharynx

2. Boys have high pitched voices when they are young, but their voices deepen as they age. What causes this?

• a. They are able to push more air through the larynx as they get older
• b. Their lungs grow as they get older
• c. Their mouths and sinus cavities grow, causing sound to vibrate
• d. Their vocal cords grow longer as they get older

3. What is the purpose of the cartilaginous ring that surround in the trachea?

• a. To prevent food from entering the trachea accidentally
• b. To prevent the trachea from collapsing between breaths
• c. To collect foreign particles and prevent them from entering the lungs
• d. To produce sound as air passes through them

4. Which of the following describes the path of carbon dioxide as it leaves your capillaries and exits through the respiratory system?

• a. alveoli, bronchi, bronchioles, trachea, larynx, pharynx, mouth/nose
• b. mouth/nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli
• c. mouth/nose, pharynx, larynx, bronchioles, trachea, bronchi, alveoli
• d. alveoli, bronchioles, bronchi, trachea, larynx, pharynx, mouth/nose

5. You are sitting calmly while you work on this test. The amount of air that is regularly being exchanged through your lungs during this time is called the

• a. residual volume
• b. pharynx
• c. larynx
• d. tidal volume

6. Your doctor told you that you have an upper respiratory infection. Which of the following structures would not be affected by this infection?

• a. bronchi
• b. pharynx
• c. larynx
• d. nose

7. Your friend had her larynx removed. What will she be unable to do?

• a. cough
• b. swallow
• c. larynx
• d. nose

8. The ciliated cells within the respiratory mucosa propel foreign particles _____________ from the nasal cavity and ____________ from the trachea.

• a. inferiorly, superiorly
• b. superiorly, inferiorly
• c. laterally, medially
• d. medially, laterally

9. Which of the following is NOT a function of the paranasal sinuses?

• a. produce mucus
• b. resonate speech
• c. keep airways open
• d. lighten the skull

10. Tonsils and alveolar macrophages are found within the respiratory system, but function as part of the

• a. digestive system
• b. muscular system
• c. lymphatic system
• d. nervous system