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(a) What is dead space air? What is its ...

(a) What is dead space air? What is its value in normal adult male ?

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(a) Dead space air : It is the volume of air which remains in the air passages (nasal cavity, trachea, bronchi) and does not take part in gaseous exchange due to absence of capillaries there. Its value in normal adult male is about 150 ml.
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