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Questions and Answers
Which statement about air flow through bronchioles is true?
Which statement about air flow through bronchioles is true?
- Air flow is not affected by frictional resistance to flow.
- Air flow is directly proportional to frictional resistance to flow.
- Air flow is inversely proportional to the pressure difference
- Air flow is directly proportional to the pressure difference (correct)
What is the cause of movement of air from higher to lower pressure in the conducting zone and terminal bronchioles?
What is the cause of movement of air from higher to lower pressure in the conducting zone and terminal bronchioles?
- The volume of the lungs
- The movement of the diaphragm
- The frictional resistance to flow
- The pressure difference between the two ends of the airways (correct)
How are pressure differences induced in the pulmonary system?
How are pressure differences induced in the pulmonary system?
- By changes in frictional resistance to flow
- By changes in air flow through bronchioles
- By changes in the movement of the diaphragm
- By changes in lung volumes (correct)
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