N3280 Test 3 Exam 2025 Questions and
Answers
The ___ warms, humidifies, and filters air - ANS upper airway
The ___ stops food from going into the trachea - ANS epiglottis
The ___ is in charge of air conduction which allows cellular transport in the alveoli and
produces surfactant - ANS Lower airway and tracheobronchial tree
___ are hair cells that line airway system which sweeps out bacteria and pathogens -
ANS Mucociliary clearance
What population doesn't have mucociliary clearance? - ANS Smokers
___ reduces the surface tension between the moist membranes and prevents alveoli from
collapsing - ANS Surfactant
___ lobes are auscultated on the back of the patient - ANS posterior
The ___ lobe is auscultated anteriorly - ANS middle
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,The ___ is a thin layer of tissue that covers the lungs and lines the interior wall of the chest
cavity - ANS pleura
The ___ makes pressure change easier in the lungs and allows them to expand and keeps them
'slippery' - ANS Serous membrane
The ___ pleura covers the lungs and the ___ pleura lines the thoracic cavity - ANS Visceral;
parietal
___ is the active phase of breathing and the diaphragm flattens and allows air to rush into the
lungs - ANS Ventilation
___ is the passive phase of breathing when the diaphragm flattens and air moves out of the
lungs - ANS Expiration
True or false: the thorax is a positive pressure space - ANS False - its negative
Patients who have a change in surface area available due to water/fluid in the lungs -
ANS COPD, chronic asthma pts
Factors influencing diffusion of gases in lungs - ANS - change in surface area available (EX:
edema)
- Thickening of alveolar capillary membrane (EX: chronic asthma)
- Partial pressure (EX: pressure change due to elevation and less oxygen, making alveolar less
expandable)
- Solubility and molecular weight of the gas (EX: smoke inhalation)
___ of the lungs can be altered by elevation. What does it do to the alveoli/ - ANS partial
pressure. Makes alveoli less expandable
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, What type of patients have problems with solubility and molecular weight of the gas in the
lungs? - ANS Burn patients and smokers
___ measures how accurately oxygen is carried in the body - ANS Hemoglobin
What is oxygen carried in the body? - ANS via plasma and RBC
What are the RBC's that oxygen is carried called? - ANS oxyhemoglobin
What are the RBC that carry CO2? - ANS carboxyhemoglobin
___ is an inadequate amount of oxygen available to the cells - ANS hypoxia
___ is difficulty breathing - ANS dyspnea
In ___ the heart cells are dead and the damage is irreversible; whereas in ___ the cells still have
an opportunity to oxygenate - ANS ischemia; hypoxia
When checking for hypoxia, what are the 2 places on a patient you should look at? - ANS Nail
beds and gum lines
In patients with COPD, tissue swelling, asthma, and an excessive amount of secretions and
inflammation they are experiencing ___ - ANS dyspnea - difficulty breathing
Patients with ___ use accessory muscle which looks like belly breathing - ANS dyspnea
In ___ there is a decreased rate or depth of air movement into the lungs which may be caused
by giving patients too much narcotics - ANS Hypoventilation
Pg. 3 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
Answers
The ___ warms, humidifies, and filters air - ANS upper airway
The ___ stops food from going into the trachea - ANS epiglottis
The ___ is in charge of air conduction which allows cellular transport in the alveoli and
produces surfactant - ANS Lower airway and tracheobronchial tree
___ are hair cells that line airway system which sweeps out bacteria and pathogens -
ANS Mucociliary clearance
What population doesn't have mucociliary clearance? - ANS Smokers
___ reduces the surface tension between the moist membranes and prevents alveoli from
collapsing - ANS Surfactant
___ lobes are auscultated on the back of the patient - ANS posterior
The ___ lobe is auscultated anteriorly - ANS middle
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
,The ___ is a thin layer of tissue that covers the lungs and lines the interior wall of the chest
cavity - ANS pleura
The ___ makes pressure change easier in the lungs and allows them to expand and keeps them
'slippery' - ANS Serous membrane
The ___ pleura covers the lungs and the ___ pleura lines the thoracic cavity - ANS Visceral;
parietal
___ is the active phase of breathing and the diaphragm flattens and allows air to rush into the
lungs - ANS Ventilation
___ is the passive phase of breathing when the diaphragm flattens and air moves out of the
lungs - ANS Expiration
True or false: the thorax is a positive pressure space - ANS False - its negative
Patients who have a change in surface area available due to water/fluid in the lungs -
ANS COPD, chronic asthma pts
Factors influencing diffusion of gases in lungs - ANS - change in surface area available (EX:
edema)
- Thickening of alveolar capillary membrane (EX: chronic asthma)
- Partial pressure (EX: pressure change due to elevation and less oxygen, making alveolar less
expandable)
- Solubility and molecular weight of the gas (EX: smoke inhalation)
___ of the lungs can be altered by elevation. What does it do to the alveoli/ - ANS partial
pressure. Makes alveoli less expandable
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, What type of patients have problems with solubility and molecular weight of the gas in the
lungs? - ANS Burn patients and smokers
___ measures how accurately oxygen is carried in the body - ANS Hemoglobin
What is oxygen carried in the body? - ANS via plasma and RBC
What are the RBC's that oxygen is carried called? - ANS oxyhemoglobin
What are the RBC that carry CO2? - ANS carboxyhemoglobin
___ is an inadequate amount of oxygen available to the cells - ANS hypoxia
___ is difficulty breathing - ANS dyspnea
In ___ the heart cells are dead and the damage is irreversible; whereas in ___ the cells still have
an opportunity to oxygenate - ANS ischemia; hypoxia
When checking for hypoxia, what are the 2 places on a patient you should look at? - ANS Nail
beds and gum lines
In patients with COPD, tissue swelling, asthma, and an excessive amount of secretions and
inflammation they are experiencing ___ - ANS dyspnea - difficulty breathing
Patients with ___ use accessory muscle which looks like belly breathing - ANS dyspnea
In ___ there is a decreased rate or depth of air movement into the lungs which may be caused
by giving patients too much narcotics - ANS Hypoventilation
Pg. 3 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
