What does it mean if oxygenated blood leaving the alveolar capillaries has an oxygen partial pressure of 100 mmHg? A. oxygen will have diffused from the blood into the alveoli. B. the partial pressure of oxygen in the alveoli was 100 mmHg C. the partial pressure of oxygen in the alveoli was less than 100 mmHg D. the partial pressure of oxygen in the alveoli was more than 100 mmHg
Option B. If oxygenated blood leaving the alveolar capillaries has an oxygen partial pressure of 100mmHg this means the partial pressure of oxygen in the alveoli was 100mmHg.