Respiratory System Quiz

2. From superior to inferior, the portions of the pharynx are as follows:

• nasopharynx, oropharynx, laryngopharynx
• oropharnyx, nasopharnyx, laryngopharynx
• laryngopharynx, oropharynx, nasopharynx
• nasopharynx, laryngopharynx, oropharynx

3. The tonsils are part of the respiratory system and the ___________ system.

• digestive
• lymphatic
• muscular
• nervous

4. Which portion of the larynx is responsible for keeping the airway open?

• vocal cords
• cartilage
• epiglottis

5. When the vocal cords are stretched tightly, what type of sound is produced?

• high pitch
• low pitch

6. In the trachea, the cartilaginous rings are U-shaped. They are open on one side to allow movement of

• the larynx.
• the lungs.
• the diaphragm.
• the esophagus.

7. Which of the following are true statements?

• The right lung has 3 lobes and the left lung has 2 lobes.
• The cardiac notch is found in the left lung.
• The pleural fluid keeps the lungs moist.
• Surfactant keeps the alveoli from collapsing.
• Alveolar macrophages are restricted to the alveoli.

8. Why does air rush into the lungs during inspiration?

9. Which of the following pair is mismatched?

• tidal volume- the amount of air exchanged by lungs at rest
• residual volume- the amount of air someone can consciously exchange with the environment
• inspiratory reserve volume- additional amount of air that can be consciously inhaled
• expiratory reserve volume- additional amount of air that can be consciously exhaled

10. What two structures in the brainstem are responsible for breathing?

11. Which of the following is the most important stimulus to control the respiratory rate?

• physical factors
• chemical factors
• emotional factors
• conscious control