- 1. These are tiny sacs in the lungs through which the exchange of oxygen and carbon dioxide takes place.
A) cilia
B) alveoli
C) bronchi
D) breathing
- 2. The mechanical process of moving air into and out of the lungs; also called ventilation.
A) alveoli
B) cilia
C) respiration
D) breathing
- 3. Tiny hairlike extensions of cells that line the respiratory tract. They move in a wavelike fashion to help eliminate dust and germs from the body.
A) cilia
B) bronchi
C) breathing
D) alveoli
- 4. The amount of air the lungs can hold after taking as deep a breath as possible (the sum of vital capacity and residual volume).
A) breathing
B) vital capacity
C) residual volume
D) total lung capacity
- 5. The total amount of air that a person can exhale after taking as deep a breath as possible.
A) total lung capacity
B) vital capacity
C) cilia
D) residual volume
- 6. When you inhale, your diaphragm
A) None of the these
B) Stays the same
C) Moves down
D) Moves up
- 7. Which of the following statements best describes one step of gas exchange in the lungs?
A) Waste carbon dioxide passes into the bloodstream from the alveoli.
B) Waste carbon dioxide passes into the alveoli from the bloodstream.
C) Oxygen passes into the alveoli from the bloodstream.
D) None of the these.
- 8. Which of the following DOES NOT happen during inhalation?
A) The diaphragm moves up.
B) The pressure in the lungs decrease.
C) Air moves into the lungs.
D) The ribs move upward and outward.
- 9. The amount of air that remains in the lungs after a person exhales as forcefully as he or she can.
A) residual volume
B) vital capacity
C) total lung capacity
D) breathing
- 10. The process of using oxygen and releasing carbon dioxide and water
A) respiration
B) breathing
- 11. The main passage into and out of the respiratory system
A) pharynx (throat)
B) nasal passage
- 12. connects the nasal passages to the trachea
A) epiglottis
B) pharynx (throat)
C) bronchioles
D) bronchus/bronchi
- 13. tube guarded by the larynx; directs air to the bronchi and lungs
A) bronchus/bronchi
B) larynx
C) trachea
D) bronchioles
- 14. tube that connects the trachea to the lungs; directs air to the bronchioles
A) epiglottis
B) bronchus/bronchi
C) larynx
D) pharynx (throat)
- 15. smaller branches of bronchi; directs air to the alveoli
A) larynx
B) epiglottis
C) bronchioles
D) capillaries
- 16. Place where air is filtered, warmed and moistened by mucus and hairs.
A) bronchioles
B) larynx
C) nasal passages
D) capillaries
- 17. Place where sound is produced by air vibrations over vocal cords
A) capillaries
B) epiglottis
C) nasal passages
D) larynx
- 18. directs air to the trachea and food to the esophagus
A) nasal passages
B) capillaries
C) larynx
D) epiglottis
- 19. Receives oxygen from the alveoli and returns carbon dioxide to the alveoli
A) smelling
B) epiglottis
C) larynx
D) capillaries
- 20. The process by which the cells in the olfactory membrane react to certain chemicals and send a message to the brain by way of the olfactory nerve.
A) breathing
B) smelling
C) epiglottis
D) capillaries
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