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FISDAP Airway Exam Questions and Correct Answers | Latest Update
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From the atmosphere, what structures does air pass through during ventilation? -:- Starts in atmosphere, then nose, nasopharyngeal space/orophargyneal space (if mouth breather), then pharynx, larynx, trachea, bronchi, bronchioles, alveoli What is the purpose of the nasal passages and nasopha...

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  • September 19, 2024
  • 42
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • from the atmosphere what structures does air pass

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2024 /2025 | © copyright | This work may not be copied for profit gain Excel!




FISDAP Airway Exam Questions and Correct
Answers | Latest Update
From the atmosphere, what structures does air pass through during ventilation?


✓ -:- Starts in atmosphere, then nose, nasopharyngeal space/orophargyneal

space (if mouth breather), then pharynx, larynx, trachea, bronchi,

bronchioles, alveoli




What is the purpose of the nasal passages and nasopharynx?


✓ -:- To warm/humidify air as it passes through




What is the difference between respiration and ventilation?


✓ -:- Respiration refers to the exchange of gases in the alveoli, ventilation

refers to the movement of air into the lungs. Respiration is needed to

provide O2 to cells and remove waste products. Also regulates pH of

blood.




What are the structures of the upper airway?


✓ -:- nose, mouth, tongue, jaw, pharynx and larynx




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,2024 /2025 | © copyright | This work may not be copied for profit gain Excel!



What structure is considered a landmark that divides the upper airway from lower?


✓ -:- The larynx, anything above is upper. The larynx and below are lower.




What are the structures of the lower airways?


✓ -:- larynx (includes adam's apple/thyroid cartilage, cricothyroid

membrane, cricoid cartilage), trachea, bronchi, bronchioles, alveoli




Describe the anatomy of the larynx.


✓ -:- From superior to inferior. Thyroid cartilage, cricothyroid membrane,

and cricoid membrane. The thyroid cartilage and cricoid cartilage are

anterior to the larynx, and the cricothyroid membrane is posterior to

both structures.




True or false: the lungs are completely equal in the midsaggital plane.


✓ -:- False, right lungs has 3 lobes, left lung only has 2 lobes. Together

they have 5 total. Also, the right bronchi is inferior to the left bronchi.




What are the structures of the lungs in order of ventilation?




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,2024 /2025 | © copyright | This work may not be copied for profit gain Excel!



✓ -:- bronchioles, and alveoli




True or false: the lungs use muscles found in the lateral lobes to expand and contract?


✓ -:- False: the lungs are hollow organs and contain no muscles. When the

diaphragm contracts it expands the thoracic cavity. The pleural space has

a negative pressure and the lungs expand. This results in a slightly

negative pressure (compared to the atmosphere) and air rushes in.




True or false: Air rushes into the lungs because of negative pressure.


✓ -:- True, when the lungs expand, they are creating a vacuum because

they are expanding the volume of the container. This increase in volume

causes influx of air into the container until the pressure is equalized with

the atmosphere.




True or false: The parietal pleura lines the lungs and the visceral pleura lines the lungs. The

space between is called the anterior pleura.


✓ -:- False: the visceral pleura lines the lungs, the parietal pleura lines the

body cavity and the pleural space is the space in between bot h where

body fluid allows for both to smoothly glide.




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, 2024 /2025 | © copyright | This work may not be copied for profit gain Excel!



What muscles are involved in inhalation?


✓ -:- The diaphragm, cervical muscles (neck), intercostals, abdominal

muscles, and pectoral muscles.




What muscles are involved in expiration?


✓ -:- none, expiration (if done passively) is achieved by the relaxation of

the diaphragm.




What is the primary driver of respiration? (Why would we increase/decrease RR?)


✓ -:- The CSF in the brain has chemoreceptors sensitive to CO2. When

there is too much CO2. The pH changes. These sensors feed back to the

medulla oblongata, which stimulates the phrenic nerve which innervates

the diaphragm. They cause an increase in activity of the diaphragm. This

increases the RR which causes us to increase tidal volume. This means

more CO2 is exhaled. And brings our pH back to normal.




We also have the less sensitive hypoxic drive




What is hypoxic drive?


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