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The medial opening between the vocal folds through which air passes.


A) thyrohyoid membrane
B) vestibule
C) cricothyroid ligament
D) rima glottidis
E) glottis

F) B) and C)
G) A) and D)

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The function of type II alveolar cells is to produce .

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Figure 22.3 Use the diagram above to answer the following questions. -Identify the letter that indicates the vestibular fold, or false vocal cord. A) A B) B C) C D) D E) E Figure 22.3 Use the diagram above to answer the following questions. -Identify the letter that indicates the vestibular fold, or false vocal cord.


A) A
B) B
C) C
D) D
E) E

F) A) and D)
G) C) and D)

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The number of secondary, or lobar, bronchi is a distinguishing characteristic of the right and left lungs.

A) True
B) False

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What type of epithelium occurs in the respiratory mucosa?


A) pseudostratified ciliated columnar epithelium
B) stratified squamous epithelium
C) simple columnar epithelium
D) simple squamous epithelium

E) All of the above
F) A) and C)

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Most foreign substances in inspired air fail to reach the lungs because of the


A) porous structure of the nasal conchae.
B) ciliated epithelium and mucus that line the respiratory passages.
C) abundant blood supply to the nasal mucosa.
D) action of the epiglottis.

E) A) and B)
F) A) and C)

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Gas exchange occurs across the bronchi and bronchioles.

A) True
B) False

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The mucosal epithelium transitions from pseudostratified columnar to simple cuboidal along the path to the respiratory bronchioles.

A) True
B) False

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When the diaphragm contracts, it raises the floor of the thoracic cavity upward.

A) True
B) False

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Changes in the size of the thoracic cavity bring about inspiration and expiration.

A) True
B) False

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