Imagine a football player on the sidelines during the super bowl recovering afte
ID: 3478968 • Letter: I
Question
Imagine a football player on the sidelines during the super bowl recovering after a record breaking run down the field. The coach wants the player back in the game as soon as possible and insists that the player breathe for several minutes from a tank containing 100% oxygen at 1 atm pressure that is dispensed at normal atmospheric pressure. Draw the changes in the partial pressures for oxygen and CO2 that occur at the level and length of the capillaries surrounding the alveolus – be sure to include numbers!
Explanation / Answer
In alveolus, partial pressure of oxygen is 100mm Hg, the pO2 in capillaries is also 100mm Hg.
1 atm pressure equals to 760.001 mm-Hg
100% oxygen, i.e. there is no other gas.
pO2 at 1 atm 100%O2 would be 760.001mmHg*1= 760.00 mm Hg