1. The Respiratory System
Chapter 7

2. Overview of Structures, Combining Forms, and Functions of the Respiratory Systems

3. Structures of the Respiratory System

4. Structures of the Upper Respiratory Tract

5. Nose Primary Function Related Word Parts (Combining Forms)
Exchanges air during inhaling and exhaling
Warms, moisturizes, and filters inhaled air
Related Word Parts (Combining Forms)
nas/o
rhino/o

6. Sinuses Primary Function Related Word Parts (Combining Forms)
Provide mucus
Make bones of the skull lighter
Aid in sound production
Related Word Parts (Combining Forms)
sinus/o

7. Pharynx Primary Function Related Word Parts (Combining Forms)
Transports air to and from the nose to the trachea
Related Word Parts (Combining Forms)
pharyng/o

8. Larynx Primary Function Related Word Parts (Combining Forms)
Makes speech possible
Related Word Parts (Combining Forms)
laryng/o
(continues)

9. Larynx

10. Epiglottis Primary Function Related Word Parts (Combining Forms)
Closes off the trachea during swallowing
Related Word Parts (Combining Forms)
epiglott/o

11. Trachea Primary Function Related Word Parts (Combining Forms)
Transports air to and from the pharynx to the bronchi
Related Word Parts (Combining Forms)
trache/o

12. Bronchi Primary Function Related Word Parts (Combining Forms)
Transports air from the trachea into the lungs
Related Word Parts (Combining Forms)
bronch/o, bronchi/o

13. Alveoli Primary Function Related Word Parts (Combining Forms)
Air sacs that exchange gases with the pulmonary capillary blood
Related Word Parts (Combining Forms)
alveol/o
(continues)

14. Alveoli

15. Lungs Primary Function Related Word Parts (Combining Forms)
Bring oxygen into the body
Remove carbon dioxide and some water waste from the body
Related Word Parts (Combining Forms)
pneum/o, pneumon/o, pulmon/o
(continues)

16. Lungs

17. Respiration
Inhalation: the act of taking in air as the diaphragm contracts and pulls downward
Exhalation: the act of breathing out
(continues)

18. Respiration

19. Key Word Parts and Definitions
bronch/o, bronchi/o
bronchial tube, bronchus
laryng/o
larynx, throat
nas/o
nose
ox/i, ox/o, ox/y
oxygen
(continues)

20. Key Word Parts and Definitions
pharyng/o
throat, pharynx
phon/o
sound, voice
pleur/o
pleura, side of the body
-pnea
breathing
(continues)

21. Key Word Parts and Definitions
pneum/o, pneumon/o, pneu-
lung, air
pulm/o, pulmon/o
lung
sinus/o
sinus
somn/o
sleep
(continues)

22. Key Word Parts and Definitions
spir/o
to breathe
thorac/o, -thorax
chest, pleural cavity
trache/o, trachea
windpipe

23. Questions

24. Question The surface area of a human lung is equal to: a tennis court
a football field
a Ping-Pong table

25. Answer
a. tennis court

26. Question
A cough releases an explosive charge of air that moves at speeds up to 60 mph. A sneeze can exceed the speed of 100 mph.
True or False?

27. Answer
True

28. Question
How many times a day does the average human adult take a breath?
a. 10,000–17,500
b. 25,000–35,000
c. 17,500–25,000

29. Answer
c. 17,500–25,000

30. Question
The right lung is smaller than the left lung.
True or False

31. Answer
False: The left lung is smaller than the right lung to make room for the heart.