Body Fluids and CirculationHard
Question
A large proportion of xygen is left unsused in the human blood even after its uptake by thebody tissues. This O2
Options
A.raises the CO2 P of blood to 75 mm of Hg
B.is enough to keep oxyhaemoglobin
C.helps in releasing more O2 to the epithelial tissues
D.acts as a reverse during muscular exercise
Solution
Our tissue are able to uilize only 25% of O2 carried by arterial blood. The venous blood isstill 75% saturated with O2. This O2 acts as a reverse during muscular exercise.
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