BIOL 3320 - Respiratory System Exam | Questions and Answers
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Course
BIOL 3320
Institution
BIOL 3320
BIOL 3320 - Respiratory System Exam | Questions and Answers Place the following structures in the correct order through which a molecule of air would pass as it moves from the nose to the alveoli. 1. Nasopharynx 2. Oropharynx 3.Laryngopharynx 4. Trachea 5. Carina 6. Main Bronchi 7. Lobar Bronchi ...
Place the following structures in the correct order through which a molecule of air would
pass as it moves from the nose to the alveoli.
1. Nasopharynx
2. Oropharynx
3.Laryngopharynx
4. Trachea
5. Carina
6. Main Bronchi
7. Lobar Bronchi
8. Segmental Bronchi
9. Bronchiole
10. Terminal Bronchiole
11. Respiratory Bronchiole
Which of the following are bicarbonate ions exchanged for when they diffuse from
plasma back into red blood cells?
Chloride ions
At the respiratory membrane, the partial pressure of carbon dioxide in the plasma is
_____ than in the _____ of the lungs.
higher, alveoli
Place the labels in the correct sequence, indicating the order this reversible reaction will
occur within the PULMONARY CAPILLARIES. You should start with and end with either
carbon dioxide or bicarbonate.
HCO3- + H+ --> H2CO3 --> H2O + CO2
The___ is the amount of air remaining in the lungs after a forced expiration.
residual volume
The volume of air exchanged during normal breathing is called the_____.
tidal volume
After a normal inspiration, the amount of air that can be inspired forcefully is called the
____
inspiratory reserve volume
If you subtract the residual volume from the total lung capacity, you get the ____
vital capacity
, The vital capacity minus the _____ equals the inspiratory capacity
expiratory reserve volume
The effects of obstructive diseases such as asthma or emphysema may be determined
by measuring the ____
forced expiratory volume
______ law states that the amount of gas dissolving in water is determined by its partial
pressure.
Henry's
Thus, the greater the Po₂ in the alveolar air, the more _____ the blood picks up
Oxygen
Since blood arriving at the alveolus has a ____ Pco2 than air, it releases CO2 into the
air.
Higher
Each gas in a mixture behaves _____
Independently
The diffusion of one gas does not ____ the diffusion of another
Influence
Which of the following structures are part of the conducting zone of the respiratory
system? Check all that apply.
pharynx, larynx, trachea, main bronchi
Because gas exchange does not occur within the conducting zone of the respiratory
system, it is also referred to as what?
anatomical dead space
When the production of surfactant by _____ alveolar cells is insufficient, premature
infants typically have trouble keeping their alveoli inflated
type-II
Classified as simple squamous epithelial cells, the majority of the alveolar surface is
covered by _____ alveolar cells.
type-I
Microscopic examination of lung tissue from a patient who died from bacterial
pneumonia would reveal large numbers of ______
Macrophages
The layer of the respiratory membrane that is furthest away from the alveolar air spaces
is the membrane of the _______
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