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Ch. 22 Art Questions

front 1

Which of the following features characterizes the right lung?

back 1

presence of a superior, middle, and inferior lobe

front 2

Which blood vessels supply oxygenated systemic blood to the lung tissue?

back 2

bronchial arteries

front 3

The indentation on the medial surface of each lung through which pulmonary and systemic blood vessels, bronchi, lymphatic vessels, and nerves enter and leave is called the ___________.

back 3

hilum

front 4

In which region are the palatine tonsils found?

back 4

oropharynx

front 5

Which of the following is NOT a function of the nasal conchae?

back 5

routing air and food into proper channels

front 6

What part of the larynx covers the laryngeal inlet during swallowing to keep food out of the lower respiratory passages?

back 6

epiglottis

front 7

During the Valsalva's maneuver, what part of the larynx closes to increase intra-abdominal pressure, such as to help with defecation?

back 7

glottis

front 8

Which cartilage belonging to the larynx anchors the vocal cords?

back 8

arytenoid cartilages

front 9

Which of the following is NOT a function of the larynx?

back 9

serving as part of the respiratory zone

front 10

Since mucus-producing cells and cilia are sparse in the bronchioles and alveoli, how does the body remove microorganisms that make their way into the respiratory zone?

back 10

alveolar macrophages crawl freely along internal alveolar surfaces

front 11

What type of epithelial tissue forms the walls of the alveoli?

back 11

simple squamous epithelium

front 12

Where does gas exchange occur in the respiratory system?

back 12

alveoli

front 13

Which of the following pressures rises and falls with the phases of breathing, but eventually equalizes with the atmospheric pressure?

back 13

intrapulmonary pressure

front 14

Which of the following pressures must remain negative to prevent lung collapse?

back 14

intrapleural pressure

front 15

Calculate the transpulmonary pressure if atmospheric pressure is 755 mm Hg.

back 15

4 mm Hg

front 16

Which of the following gives the relationship between the pressure and volume of a gas?

back 16

Boyle's law

front 17

Which of the following pressure relationships best illustrates when inspiration will occur?

back 17

Ppul < Patm

front 18

Which muscles are activated during normal quiet inspiration?

back 18

diaphragm and external intercostal muscles

front 19

What is the volume of the total amount of exchangeable air for a healthy, young adult male?

back 19

4800 ml

front 20

Which volumes are combined to provide the inspiratory capacity?

back 20

tidal volume (TV) + inspiratory reserve volume (IRV)

front 21

What is the tidal volume of an average adult male?

back 21

500 ml

front 22

Oxygen is unloaded where it is most needed when blood pH drops, this is a phenomenon known as ___________.

back 22

the Bohr effect

front 23

What is the most common method of carbon dioxide transport?

back 23

as bicarbonate ions in the plasma

front 24

Which of the following qualifies as a fully saturated hemoglobin molecule?

back 24

hemoglobin is transporting four oxygen molecules

front 25

Which of the following initiates inspiration?

back 25

ventral respiratory group (VRG)

front 26

Which of the following respiratory rates illustrates eupnea for an average, healthy adult at rest?

back 26

15 breaths per minute

front 27

Which of the following modifies and smoothes the respiratory pattern?

back 27

pontine respiratory centers

front 28

Which of the following stimuli is the most powerful respiratory stimulant to increase respiration?

back 28

rising carbon dioxide levels

front 29

Which of the following inhibits the respiration rate?

back 29

stimulation of stretch receptors in the lungs

front 30

Which of the following conditions or scenarios increases the respiratory rate?

back 30

acidosis