BIO 669 Exam 3 Study Questions with Correct Answers 100% Verified and Graded A+
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Course
BIO 669
Institution
BIO 669
BIO 669 Exam 3 Study Questions with Correct Answers 100% Verified and Graded A+
The ventilation-perfusion ratio is the same in the lung apex and the lung base in a standing normal person. True or False - Correct Answer False. In a standing normal person, the ventilation-perfusion ratio is higher i...
BIO 669 Exam 3 Study Questions with Correct
Answers 100% Verified and Graded A+
The ventilation-perfusion ratio is the same in the lung apex and the lung base in a
standing normal person. True or False - Correct Answer False. In a standing normal
person, the ventilation-perfusion ratio is higher in the lung base compared to the lung
apex. This is due to the effects of gravity, which leads to better ventilation at the base of
the lungs where perfusion is also relatively higher.
Vital Capacity is comprised of all of the following volumes EXCEPT:
Residual Volume
Tidal Volume
Inspiratory reserve volume
Expiratory reserve volume - Correct Answer Residual Volume, Vital Capacity is the
maximum amount of air a person can expel from the lungs after a maximum inhalation.
It includes Tidal Volume, Inspiratory Reserve Volume, and Expiratory Reserve Volume.
Residual Volume, however, is the volume of air still remaining in the lungs after the
most forcible expiration.
How is most of the CO2 transported in the blood? - Correct Answer As bicarbonate
(HCO3-) that can be converted back to CO2.
Most of the CO2 in the blood is transported in the form of bicarbonate ions (HCO3-)
dissolved in the plasma. This bicarbonate can be converted back to CO2 in tissues
where it is needed for elimination through respiration.
The amount of quiet inhalation/exhalation in a typical breath is termed what? - Correct
Answer Tidal Volume
How is alveolar volume measured? - Correct Answer indirectly by measuring PaO2 or
PaCO2.
Which of the following does NOT have cartilage as part of its structure?
Right mainstem bronchus
Respiratory Bronchioles
Trachea
Segmented bronchioles - Correct Answer Respiratory bronchioles do not have cartilage
as part of their structure. Cartilage is present in the trachea and the mainstem bronchi
but is gradually reduced in the smaller airways, such as the bronchioles, and is absent
in the respiratory bronchioles.
Which of the following pulmonary conditions would not be considered as an Acute Lung
Injury (ALI)/Acute Respiratory Distress Syndrome (ARDS)
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