Q24. Select the correct events that occur during inspiration.
a. Contraction of diaphragm
b. Contraction of external inter-costal muscles
c. Pulmonary volume decreases
d. Intra pulmonary pressure increases

1. (a) and (b)

Solution:
Contraction of diaphragm, Contraction of external inter-costal muscles

Q24. Select the correct events that occur during inspiration.
a. Contraction of diaphragm
b. Contraction of external inter-costal muscles
c. Pulmonary volume decreases
d. Intra pulmonary pressure increases