13.2   Multiple Choice

1) Gas exchange occurs in the:

A) nose

B) pharynx

C) larynx

D) trachea

E) alveoli

2) The respiratory conducting passageways perform all of the following functions EXCEPT:

A) allow air to reach the lungs

B) purify air

C) humidify air

D) exchange gases

E) warm incoming air

3) Which one of the following terms does NOT apply to the nose:

A) external nares

B) nasopharynx

C) nostrils

D) nasal cavity

E) nasal septum

4) What is the role of mucus in the nasal cavity:

A) increase the air turbulence in the nasal cavity

B) separate the oral from the nasal cavity

C) lighten the skull

D) act as a resonance chamber for speech

E) trap incoming bacteria and other foreign debris

5) The nasal cavity is separated from the oral cavity by:

A) the hard palate

B) the nasal conchae

C) the soft palate

D) both the hard and soft palate

E) both the nasal conchae and hard palate

6) Which one of the following bones does NOT contain paranasal sinuses:

A) frontal

B) sphenoid

C) mandible

D) ethmoid

E) maxilla

7) Which tonsil(s) is/are located in the oropharynx at the end of the soft palate:

A) adenoid

B) pharyngeal tonsil

C) thymus gland

D) palatine tonsils

E) lingual tonsils

8) Air from the nasal cavity enters the superior portion of the pharynx called the:

A) nasopharynx

B) oropharynx

C) palatopharynx

D) laryngopharynx

E) tracheopharynx

9) The pharynogotympanic tubes, which drain the middle ear, open into the:

A) nasopharynx

B) oropharynx

C) palatopharynx

D) laryngopharynx

E) tracheopharynx

10) Contaminated mucus is removed from the lower respiratory passageways, such as the trachea, by:

A) flagella

B) yawning

C) contractions of smooth muscles

D) cilia

E) laughing