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the figure shows a diagrammatic view of ...

the figure shows a diagrammatic view of human respiratory system with labels A, B , C and D . Select the option which given correct identification and main function and / or characteristic

A

B-pleural memrane-surround ribs on both
sides to provide cushion against rubbing

B

C-Alveoli-thin walled vascular bag like
structures for exchange of gases

C

D-lower end of longs-diaphragm pulls it down
during inspiration

D

A-trachea-long tube supported by complete
cartilaginous rings for conducting inspired air

Text Solution

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The correct Answer is:
B
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