Just need clarification on something because my lecturer's slides suck. During inspiration, movement of diaphragm causes and increase in cavity area which causes air to enter due to drop of pressure. Correct?
In other words, is the intake of air a passive response due to movement of diaphragm?

Question

anonymous · Answer

yes, a lower pressure is created so that air comes into the cavity

anonymous · Answer

Also, at which stage in the respiration process is atmospheric and alveolar pressure equal?

anonymous · Answer

at the end of respiration, that is after expiration, they have to be equal since no air rushes into the lungs at this point

anonymous · Answer

Thanks for the help!

anonymous · Answer

Glad to help :)