what is the role of the diaphram
Answers
Answer:
The diaphragm is a large muscle that sits under the lungs. When you inhale, the diaphragm contracts which provides more space for the kings to expand in the chest cavity. Alongside the diaphragm, the muscles between and around the ribs tighten to move the ribcage up and out to provide even more space. when you exhale, the diaphragm expands, forcing the air from you lungs. As the diaphragm retracts, the intercostal muscles (around the ribs) loosen which allows the ribcage to move back to its original position. This exerts a little bit more pressure that helps to empty the lungs as well.
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Answer:
Diaphragm = The muscles that separate the thoracic cavity from the abdomen . The diaphragm is the main muscle of respiration .
Contraction of diaphragm muscle expands the lungs during inspiration . The nerve that control the diaphragm is the phrenic nerve , which originates at vertebral level C3 -C5 . During development the diaphragm moves down and drag the phrenic nerve with it