[A : alveolar cavity - mai...] The figure given below shows a small part of human lung where exchange of gases takes place. In whic

For Competitive Exams

The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?

B : Red blood cell - transport of CO₂ mainly

C : Arterial capillary - passes oxygen to tissues

A : alveolar cavity - main site of exchange of respiratory gases

D : Capillary wall - exchange of O₂ and CO₂ takes place here

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