3 years ago

What is the muscle that when contracted, it allows the lungs to fill with air?

2 answers:

6 0

Answer:

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.

Explanation:

DIA [1.3K]3 years ago

6 0

Answer:

Explanation:

The muscle that is contracted, it allows the lungs to fill with air through diaphragm muscle.

Hope it helped you.

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