Question

b. transport i Oxygen
.. Which of the following statements describes the function of the diaphragm?
a. It contracts and relaxes during respiration to change the volume of the chest
cavity
b. It serves as the passage of air into the lungs
c. It carries blood throughout the body
d. It is the site of gas exchange
from the body.​

Answer 1

Answer:

A.

Explanation:

The diaphragm is the muscle located underneath the lung cavity.

Answer 2

a) It contracts and relaxes during respiration to change the volume of the chest  cavity.