Of the respiratory air volumes listed, which one has the largest volume?
A. Vital capacity
B. Expiratory reserve volume
C. Inspiratory reserve volume
D. Tidal volume
Answer: A
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A child falls and breaks his humerus, the upper arm bone, along the epiphysial plate. Which of the following could result from this injury?
A. As an adult, red marrow will persist in the medullary cavity of the humerus. B. Blood cell production will decrease dramatically in the injured bone. C. As an adult this person will have one humerus longer than the other. D. As an adult, the diaphysis of the broken humerus will be much smaller than that of the unbroken one.
In a situation where one small bronchus is obstructed, the air in that segment of the lung will develop a high partial pressure of carbon dioxide and a low partial pressure of oxygen
What changes in ventilation and perfusion will occur in that segment in response to this condition? What will be an ideal response?
An increase in the partial pressure of CO2 causes bronchioles to
A. constrict. B. dilate.
How many deciduous teeth does a person normally have?
A. 10 B. 40 C. 20 D. 32 E. 22