The diaphragm is the primary muscle of inspiration, and as such
uncompromised function is essential to support the ventilatory and gas
exchange demands associated with physical activity. The normal healthy
diaphragm may fatigue during intense exercise, and diaphragm function
is compromised with aging and obesity.
The lungs are like a balloon that has been inflated inside a plastic bottle. If any hole were to be made in that bottle, the lungs would collapse.
If the base of the bottle is replaced by a rubber membrane (the diaphram), it would be sucked slightly into the bottle by the lower pressure. This is what happens to the diaphram, which is sucked slightly into the bottle by the lower pressure.
As the diaphram tightens, the rubber membrane is straightened, thus expanding the volume in the bottle and causing the lungs to suck in fresh air.
When the diaphram relaxes, it gets sucked back and the lungs expel the air.
The Rubber Diaphragms is the dome-shaped sheet of muscle and tendon that serves as the main muscle of respiration and plays a vital role in the breathing process. Also known as the thoracic diaphragm, it serves as an important anatomical landmark that separates the thorax, or chest, from the abdomen.
try a experiment by getting a bell jar , a glass tube , a rubber sheet, 2 balloons and a cork
1st, put the cork in the bell jar , then use the 2 balloons and tie it to the 2 ends of your glass tube and pierce it into the cork . Next, cover the rubber sheer on the other opening of the
bell jar and you have your respiratory system . The rubber sheet is the diaphragm while the balloons are the lungs.