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The large dome shaped muscle which forms the floor of the chest cavity |
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Answer» Answer: diaphragm 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. |
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