Question

What would happen if atmospheric air pressure were to suddenly drop?

Select one:

a. CO2 would no longer flow out of your lungs

b. Oxygen would flow into your lungs more quickly

c. Oxygen would flow out of your lungs very quickly

Answer 1

ANSWER IS OPTION C

the whole mechanism of respiration is based on the fact that when atmospheric pressure is lower than the pressure in the lungs, the air flows into the lungs.

And when the lung pressure is greater than the atmospheric pressure, air goes out.

When atmospheric air pressure suddenly drops, the air mobes out of our lungs into the atmosphere to balance out the pressure gradient. (Our body cannot sustain high pressure changes. So, it releases some of the air in the lungs out to balance it and preventing the lung collapse).