During external respiration, the $\mathrm { P } _ { 0 _ { 2 } }$ is greater in the alveoli than in the blood of the pulmonary capillaries.

Name: During external respiration, the $\mathrm { P } _ { 0 _ { 2 } }$ is greater in the alveoli than in the blood of the pulmonary capillaries.
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During external respiration, oxygen diffuses from the alveoli, where its partial pressure ($\mathrm { P } _ { 0 _ { 2 } }$) is higher, into the blood of the pulmonary capillaries, where its partial pressure is lower.

During External Respiration, The P02\mathrm { P } _ { 0 _ { 2 } }P02​​

During External Respiration, The $\mathrm { P } _ { 0 _ { 2 } }$