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Flashcards in Chapter 22 Practice test Deck (39)
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1

Where does external respiration take place?

between oxygen in alveoli and the capillaries in the lungs

2

ithin what respiratory structure does the epithelium change from stratified squamous to pseudostratified ciliated columnar?

the larynx

3

Central chemoreceptors are located in the __________.

reticular formation of the medulla oblongata

4

__________ is a slippery substance secreted in the lungs that reduces surface tension and prevents collapse of the alveoli

Surfactant

5

__________ tonsils are located in the nasopharynx.

Pharyngeal

6

The __________ is a cartilaginous flap that prevents food or liquid from going into the lower respiratory tubes.

epiglottis

7

What are the roles of the peripheral chemoreceptors of the respiratory system? (Click on all correct answers for full credit.)

They sense falling concentrations of O2 or rising levels of CO2. They signal the respiratory center to increase the rate and depth of
breathing when the blood is too acidic.

8

What is the function of type II alveolar cells?

to secrete surfactant

9

In blowing out a candle, which respiratory muscles would you be using?

primarily the external and internal oblique muscles and the
transversus abdominis

10

The __________ lifts superiorly to close off the nasopharynx.

uvula

11


The smallest subdivision of the lung that can be seen with the unaided eye is the __________.

lobule

12

__________ are the main sites of gas exchange.

alveoli

13

The nasopharynx and larynx serve as passageways for __________.

air

14

The __________ are the most important of the three small cartilages just superior to the cricoid cartilage, because they anchor the vocal folds.

arytenoids

15

respond to inhaled antigens; located in nasopharynx and oropharynx

tonsils

16

air passageway; prevents food from entering lower respiratory tract; involved in voice production

larynx

17

produce lubricating fluid and compartmentalize the thoracic cavity

pleurae

18

small air chambers; walls consist of simple squamous epithelium.

alveoli

19

air passageway; continuous with the nasal cavity through the posterior nasal apertures; epithelium is pseudostratified ciliated columnar

nasopharynx

20

branch from the trachea at the level of T7 in living individuals; run obliquely through the mediastinum

primary bronchi

21

Your patient recently had surgery on his aortic arch. Since then, he has experienced a hoarse voice. What can you tell him about why he sounds like he has a sore throat?

During the surgery, surgeons may have damaged his left recurrent laryngeal nerve.

22

The medial opening between the right and left vocal folds is called the __________.

rima glottidis

23


Which of the following is true of pleurisy?

The pain of pleurisy originates from the parietal pleura only.

24

What is the role of alveolar macrophages in the lungs?

removal of tiny inhaled particles

25

Which structures are important for shaping sounds into recognizable consonants and vowels?

pharynx, tongue, soft palate, and lips

26

collapse of a lung from airway obstruction or pleural effusion

atelectasis

27

viral-induced inflammation that causes the air passageways to narrow; characterized by a cough that sounds like a barking dog

croup

28

respiratory infection caused by a new coronavirus; infections jumped from animal hosts to humans; identified in spring 2003

severe acute respiratory distress syndrome (SARS)

29

characterized by permanent enlargement of the alveoli caused by deterioration of the alveolar walls; related to smoking

obstructive emphysema

30

allergic inflammation that may be triggered by inhaling substances to which the sufferer is allergic; mast cells stimulate contraction of the bronchial smooth musculature and secretion of mucus

bronchial asthma