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प्रश्न
Explain the process of inspiration under normal conditions.
उत्तर
- The process through which fresh air enters the lungs is called inspiration. The diaphragm, intercostal muscles, and abdominal muscles play an essential role.
- The primary muscles of inspiration are the diaphragm and the external intercostal muscles. The contraction of the external intercostal muscles and diaphragm increases the volume of the thoracic cavity.
- Abdominal muscular relaxation occurs during inspiration, enabling the diaphragm to compress the abdominal organs. As the overall volume of the thoracic cavity grows, lung air pressure drops.
- Now that the body is under more pressure, air is entering the lungs more quickly. The airflow sequence is.
Mechanism of breathing
 |
| Inspiration |
 |
| Expiration |
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