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Circulatory and Respiratory Anatomy
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Circulatory and Respiratory Anatomy
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40. Circulatory System / Circulatory and Respiratory Anatomy / Problem 2
Why do lungs have a large number of alveoli?
ANSWERS OPTIONS
A
To increase the volume of inspired air.
B
To increase the surface area available for diffusion of gases.
C
To increase the breathing rate.
D
To increase the nervous supply to the lungs.
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