Question

Q . 1. What is diaphragm ?​

Answer 1

Answer:

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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.

Answer 2

Diaphragm, dome-shaped, muscular and membranous structure that separates the thoracic and abdominal cavities in mammals.