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NURS 1220 Ch 23 Pt 2 Test With Complete Solution
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NURS 1220 Ch 23 Pt 2 Test WithComplete Solution
Muscles of inhalation: what happens during normal, quiet inhalation? -
ANSWER -The diaphragm and external intercostals contract
-the lungs expand
-air moves into the lungs
muscles of inhalation: what muscles of inspiration are also used? - ANSWER
-accessory muscles of inspiration are also used, including:
->sternocleidomastoid muscles
->scalene muscles
->pectoralis minor muscles
sternocleidomastoid muscles - ANSWER elevate the sternum
scalene muscles - ANSWER elevate the first two ribs
pectoralis minor muscles - ANSWER elevate the third through fifth ribs
muscles of exhalation: exhalation starts when the... - ANSWER inspiratory
muscles relax
muscles of exhalation: as the diaphragm relaxes... - ANSWER its dome moves
superiorly
muscles of exhalation: as the external intercostals relax... - ANSWER the ribs
are depressed
,muscles of exhalation: during forceful breathing which muscles are used? -
ANSWER abdominal and internal intercostals muscles are used
during normal, quiet inhalation...
-what do the diaphragm and external intercostals do?
-what do the lungs do?
-what way does the air go? - ANSWER -diaphragm and external intercostals
contract
-lungs expand
-air moves into the lungs
during normal, quiet exhalation...
-what do the diaphragm and external intercostals do?
-what do the lungs do?
-what way does the air go? - ANSWER -diaphragm and external intercostals
relax
-lungs recoil, forcing air out of the lungs.
3 basic steps involved in pulmonary ventilation slide 6 diagram - ANSWER
Pressure Changes in Pulmonary Ventilation slide 7 diagram - ANSWER
Which of the following muscles contract during quiet exhalation?
a) diaphragm
b) internal intercostal muscles
c) abdominal muscles
, d) All of these muscles contract during quiet exhalation.
e) None of these muscles contract during quiet exhalation. - ANSWER e)
None of these muscles contract during quiet exhalation.
A mechanical ventilator may aid directly in
a) pulmonary ventilation
b) external respiration
c) internal respiration
d) pulmonary ventilation and external respiration are correct
e) pulmonary ventilation, external respiration, and internal respiration are
correct - ANSWER a) pulmonary ventilation
what is surface tension? - ANSWER -Inwardly directed force in the alveoli
which must be overcome to expand the lungs during each inspiration
-Surface tension produces an inwardly directed force e.g. soap bubble will
"burst" inward
Other Factors Affecting Pulmonary Ventilation are... - ANSWER surface
tension, elastic recoil, compliance, airway resistance
In the lungs, surface tension causes the alveoli to assume the... - ANSWER
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