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| 1. |
Explain the role of diaphragm in respirstion. |
| Answer» Diaphragm is a muscular sheet on the end of abdominal cavity which contract and relax to increase or decrease the surface of lungs during respiration by which during inhalation surface of lungs increase due to contraction of diaphragm and during exhalation diaphragm relaxes to decrease surface area of lungs for give out co2 | |