Gases exchangeVersión en línea The exchange of gasE between the blood and the air occurs in the alveoli. What makes this exchange possible? por Montse Torralbo 1 Blood exiting 2 Air entering 3 Air exiting 4 Air entering the lungs has a higher concentration of oxygen and a lower concentration of carbon dioxide than the air that the lungs release. 5 The blood exiting the lungs has a higher oxygen concentration and a lower carbon dioxid concentration than when it enters. 6 The amount of nitrogen remains constant. 7 Amounts per 100 ml of air 8 Blood entering
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