External respiration refers to the exchange o | vedclass

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(C) External respiration,also known as pulmonary gas exchange,is the process by which oxygen is taken up by the blood from the alveoli and carbon diox

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Alveolar air and blood

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(C) External respiration,also known as pulmonary gas exchange,is the process by which oxygen is taken up by the blood from the alveoli and carbon dioxide is released from the blood into the alveoli.This exchange occurs across the respiratory membrane between the alveolar air and the pulmonary capillaries (blood).In contrast,internal respiration refers to the exchange of gases between the blood and the tissue cells/fluid.

External respiration refers to the exchange of gases between which of the following?

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