BIO 669 Quiz 5 2024/2025 Exam
Questions and Answers 100%
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What is the conducting airways? - 🧠 ANSWER ✔✔The mechanical act of
having airflow into and out of the alveoli and respiratory bronchioles.
Do not participate in gas exchange
Components: the nasopharynx, oropharynx, larynx, trachea, bronchi, and
nonrespiratory bronchioles.
What is respiratory airways? - 🧠 ANSWER ✔✔Actual exchange of oxygen
and carbon dioxide across the membrane
Components: Respiratory bronchioles, alveolar ducts and alveoli
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,what are type 1 alveolar cells? - 🧠 ANSWER ✔✔structural- help allow for
exchange across the membrane
what are type 2 alveolar cells? - 🧠 ANSWER ✔✔surfactant producers
What does surfactant do? - 🧠 ANSWER ✔✔protein that reduces surface
tension inside the alveolar or respiratory membrane.
helps to interfere with the hydrogen bond (what makes things tighter) and
loosen it so that the alveoli can inflate
what happens to the pulmonary artery during acidemia? - 🧠 ANSWER
✔✔The pulmonary artery constricts.
How many of the pulmonary veins are filled with blood? - 🧠 ANSWER
✔✔1/3
why does the pulmonary artery constrict during acidemia? - 🧠 ANSWER
✔✔constricts to reduce blood flow to an area that has CO2 build-up
What is the alveolocapillary membrane? - 🧠 ANSWER ✔✔It is formed by
shared alveolar and capillary walls, structures include the thin membrane of
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STATEMENT. ALL RIGHTS RESERVED
, alveolar epithelium, alveolar basement membrane, interstitial space,
capillary basement membrane, and capillary endothelium.
the wall that oxygen and CO2 have to cross for respiration to occur
what does the caliber of the pulmonary artery mean? - 🧠 ANSWER ✔✔the
radius
what happens to the pressure in the thoracic cavity as your chest expands?
- 🧠 ANSWER ✔✔the pressure of the thoracic cavity drops causing
inspiration (Air going in)
what direction does air go in regard to pressure? - 🧠 ANSWER ✔✔from
high pressure to low pressure, like fluid
what is the visceral layer connected to? - 🧠 ANSWER ✔✔it is connected to
the lungs
what is the parietal layer connected to? - 🧠 ANSWER ✔✔it is connected to
the chest wall
What does pleural fluid do? - 🧠 ANSWER ✔✔it connects the parietal and
the visceral layer and helps to reduce friction
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
Questions and Answers 100%
Guaranteed Success | Already Rated A+
What is the conducting airways? - 🧠 ANSWER ✔✔The mechanical act of
having airflow into and out of the alveoli and respiratory bronchioles.
Do not participate in gas exchange
Components: the nasopharynx, oropharynx, larynx, trachea, bronchi, and
nonrespiratory bronchioles.
What is respiratory airways? - 🧠 ANSWER ✔✔Actual exchange of oxygen
and carbon dioxide across the membrane
Components: Respiratory bronchioles, alveolar ducts and alveoli
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
,what are type 1 alveolar cells? - 🧠 ANSWER ✔✔structural- help allow for
exchange across the membrane
what are type 2 alveolar cells? - 🧠 ANSWER ✔✔surfactant producers
What does surfactant do? - 🧠 ANSWER ✔✔protein that reduces surface
tension inside the alveolar or respiratory membrane.
helps to interfere with the hydrogen bond (what makes things tighter) and
loosen it so that the alveoli can inflate
what happens to the pulmonary artery during acidemia? - 🧠 ANSWER
✔✔The pulmonary artery constricts.
How many of the pulmonary veins are filled with blood? - 🧠 ANSWER
✔✔1/3
why does the pulmonary artery constrict during acidemia? - 🧠 ANSWER
✔✔constricts to reduce blood flow to an area that has CO2 build-up
What is the alveolocapillary membrane? - 🧠 ANSWER ✔✔It is formed by
shared alveolar and capillary walls, structures include the thin membrane of
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
, alveolar epithelium, alveolar basement membrane, interstitial space,
capillary basement membrane, and capillary endothelium.
the wall that oxygen and CO2 have to cross for respiration to occur
what does the caliber of the pulmonary artery mean? - 🧠 ANSWER ✔✔the
radius
what happens to the pressure in the thoracic cavity as your chest expands?
- 🧠 ANSWER ✔✔the pressure of the thoracic cavity drops causing
inspiration (Air going in)
what direction does air go in regard to pressure? - 🧠 ANSWER ✔✔from
high pressure to low pressure, like fluid
what is the visceral layer connected to? - 🧠 ANSWER ✔✔it is connected to
the lungs
what is the parietal layer connected to? - 🧠 ANSWER ✔✔it is connected to
the chest wall
What does pleural fluid do? - 🧠 ANSWER ✔✔it connects the parietal and
the visceral layer and helps to reduce friction
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
