Question

Select the correct statement.
A) Expiration is initiated through Contraction of diaphragm
B) Expiration occurs due to contraction of external intercostal muscle
C) Intrapulmonary pressure is lower than the atmospheric pressure during inspiration
D) Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure​

Answer 1

Answer:

D is the correct statement

Answer 2

Answer:

B) Expiration occurs due to contraction of external intercostal muscles.