Diaphragm is a dome shaped structure which has several large muscles which naturally separates any two adjacent parts in a human body or body of the mammals.
The thoraco abdominal diaphragm is the commonly known muscle. Considering a human body, these muscles serve to part the cavity of the chest from that of the abdomen. The diaphragm top is located one and one and a half inches from the bottom of the sternum supports the heart, and diaphragm bottom is attached round the lower ribs connecting to the lower lumbar vertebrae. Being the chief part of the respiration process in humans, these muscles rest into dome shape during exhalation. It contracts when air is inhaled; it lets the chest cavity expand by a simultaneous contraction of the chest muscles. When air is deeply inhaled followed by the expansion of the belly while inhalation and retraction, while exhalation, the diaphragm moves further down into the abdomen, thereby making the lungs expand completely in the chest cavity. This suggests that more amount of oxygen is inhaled and carbon dioxide is exhaled. A quick breathing may cause hyperventilation due to the loss of required amount of carbon dioxide.
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