FISDAP AIRWAY EXAM 3 VERSIONS (VERSION A, B & C) LATEST ACTUAL EXAM 150 QUESTIONS AND CORRECT DETAILED ANSWERS
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Course
2024/2025
Institution
2024/2025
FISDAP AIRWAY EXAM 3 VERSIONS
(VERSION A, B & C) LATEST
ACTUAL EXAM 150 QUESTIONS AND
CORRECT DETAILED ANSWERS
From the atmosphere, what structures does air pass through during ventilation? -
Answer️️ -Starts in atmosphere, then nose, nasopharyngeal space/orophargyneal
space (if mouth br...
The space between is called the anterior pleura. - Answer✔️✔️-False: the visceral pleura
lines the lungs, the parietal pleura lines the body cavity and the pleural space is the
space in between both where body fluid allows for both to smoothly glide.
What muscles are involved in inhalation? - Answer✔️✔️-The diaphragm, cervical muscles
(neck), intercostals, abdominal muscles, and pectoral muscles.
What muscles are involved in expiration? - Answer✔️✔️-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?) -
Answer✔️✔️-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? - Answer✔️✔️-Backup system to control respiration.
Chemoreceptors in brain, aorta, and carotid arteries. But they are "satisfied" by a small
amount of O2, which means it is not as sensitive as pH control of CO2
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