Question

What do you mean by external respiration ?​

Answer 1

Answer:

External respiration describes the exchange of gasses between the external environment and the bloodstream. ... Ventilation and perfusion in the alveoli must be balanced to maintain efficient gas exchange.

Answer 2

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External respiration is the formal term for gas exchange. It describes both the bulk flow of air into and out of the lungs and the transfer of oxygen and carbon dioxide into the bloodstream through diffusion