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| 1. |
What is the use of diaphragm |
| Answer» \tThe diaphragm in the respiratory system is the dome shaped sheet of muscle that separates the chest from the abdomen.\tDuring inhalation the diaphragm contracts and moves in the inferior direction, thus enlarging the volume of the thoracic cavity.\tThis reduces the pressure in the lungs and air enters into lungs.\tDuring exhalation the diaphragm relaxes and assumes its dome shape. This change increases the pressure on the lungs and squeezes the air out through the nose to the external atmosphere. | |