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True/False Quiz
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Please answer all questions

1
In order to maintain homeostasis, chloride ions follow as bicarbonate moves out of the erythrocyte.
A)True
B)False
2
The main purpose for cellular oxygen is to provide a means of producing most of the cell energy.
A)True
B)False
3
During the act of swallowing the epiglottis moves upward and the glottis appears as a triangular slit.
A)True
B)False
4
The alveoli exchange gases between the air and the capillaries within them.
A)True
B)False
5
The diaphragm is a dome-shaped smooth muscle organ innervated by the phrenic nerves.
A)True
B)False
6
The surface tension associated with the lungs can either cause the lungs to expand or collapse.
A)True
B)False
7
Respiratory distress syndrome in an infant results from an inability to breathe because of excess surfactant production in the alveoli by type I cells.
A)True
B)False
8
During inspiration the diaphragm moves upward while the thorax expands and moves outward.
A)True
B)False
9
When the diaphragm contracts, the pressure within the thoracic cavity decreases.
A)True
B)False
10
The compliance of the lung increases as the lungs expand.
A)True
B)False
11
The anatomical dead space represents the air that is trapped in the alveoli and is around 150mL.
A)True
B)False
12
The alveolar dead space is a volume of air that cannot cross the alveoli because of a disease process.
A)True
B)False
13
Bronchogenic carcinoma is a lung cancer that has spread or metastasized from some outside organ.
A)True
B)False
14
The alveolar ventilation rate is usually less than the minute respiratory volume.
A)True
B)False
15
There are chemoreceptors in the aortic and carotid bodies which are very sensitive to fluctuations in the levels of blood oxygen.
A)True
B)False
16
Decreasing blood oxygen and increasing carbon dioxide cause the major increases seen in breathing rate during strenuous exercise.
A)True
B)False
17
Hyperventilation causes its symptoms mainly because it results in respiratory acidosis.
A)True
B)False
18
The respiratory membrane is the simple squamous epithelium of the alveoli.
A)True
B)False
19
There are phagocytic cells within the lungs that move among the alveoli to remove foreign particles.
A)True
B)False
20
If the alveolar partial pressure of carbon dioxide were 45 mm Hg, carbon dioxide would not readily diffuse into the air.
A)True
B)False
21
The PO2 in the pulmonary veins is less than the PO2 in the alveolar air.
A)True
B)False
22
Retrolental fibroplasia develops in an infant who does not have sufficient blood oxygen.
A)True
B)False
23
ARDS is a condition of lung collapse or atelectasis in a newborn.
A)True
B)False
24
At high altitudes it is difficult to breathe because the air has a lower percentage of oxygen.
A)True
B)False
25
Oxygen dissociates faster from hemoglobin during exercise.
A)True
B)False
26
Carbon dioxide and oxygen compete for binding sites with the hemoglobin.
A)True
B)False







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