Question

What is diaphragm? Explain the movement of diaphragm during breathing.

Answer 1

Answer:

Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.

Explanation:

The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.

Answer 2

Answer:

here is your answer ..

Explanation:

the diaphragm ,located below the lungs ,is the major muscle of respiration .it is a large ,dome shaped muscle that contracts rhythmically and continually , all the most of time ,involuntarily ,upon inhalation ,the diaphragm contracts and flattens and the chest cavity enlarges