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Question

Anatomical dead space is

A
Upper respiratory tract
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B
Space between alveoli and capillaries
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C
Lower respiratory tract
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D
In nasal sacs
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Solution

The correct option is B Upper respiratory tract
The anatomical dead space is that portion of the respiratory system, which is external to the alveoli and includes the air conveying ducts from the nostrils to the terminal bronchioles, i.e., the upper erspiratory tract.

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