Question

during expiration, the diaphragm relaxes which _____ the intrapulmonary volume causing the intrapulmonary pressure to _____, forcing air out of the lungs.
A. incr, decr
B. incr, incr
C. decr, incr
D. decr, decr

Answer 1

The right answer should be C).

Answer 2

Almost positive the answer is C