The figure shows a diagrammatic view of human respiratory system with labels $A, B, C$ and $D$ . Select the option, which gives correct identification and main function and/or characteristic.
NEET 2013 (All India)

Question

TestHub · Accepted Answer

C-Alveoli are thin-walled vascular bag-like structures for exchange of gases. A-trachea or wind pipe is an air conducting tube through, which transport of gases takes place. B-pleural membrane is double layered, which reduces friction on the lung surface. D-diaphragm is involved in the inspiration and expiration process of breathing.

Zoology - Breathing and Exchange of Gases Question with Solution | TestHub

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