Question #a5ea9

1 Answer
Dec 16, 2017

Yes it is.

Explanation:

Because it's movements are greatly related with mechanism of breathing.

Diaphragm is a dome-shaped sheet of muscles that separates the thoracic cavity from the abdominal cavity.
http://jacksonmannrespiratory.weebly.com/diaphragm.html

During Inspiration, diaphragm contracts, it's lowered and become less dome-like. The volume of thoracic/chest cavity increases which reduces pressure inside the lungs and cause them to expand. So, the outside air rushes into the lungs to equalize the pressure.

While during Expiration, the muscles of diaphragm relax and it become more dome-like. Thus, the volume of thoracic cavity is reduced and pressure inside the lungs is increased. This presses the lungs and air inside them is expelled out.

Hope it helps...