Question

During inhalation diaphragm becomes

Answer 1

Inhalation:

1. Inhalation is defined as the process of breathing in air.
2. It contains oxygen and transports it to the lungs.
3. It is the first phase of respiration.
4. It is an active process.

The shape of the diaphragm during inhalation:

1. During inhalation, the diaphragm and intercostal muscles contract.
2. It is causing lung volume to expand.
3. At the same time, the thoracic cavity expands.
4. This causes a pressure difference between the atmosphere and the alveolus.
5. The air then enters the lungs.
6. The diaphragm contracts and moves downward during inspiration.
7. There are two steps in the breathing process.
8. Inspiration, also known as inhalation, and expiration, are often known as exhalation.
9. The act of taking atmospheric air into the lungs is known as inspiration.
10. The diaphragm contracts during inspiration, moving downwards and flattening out.
11. During the inspiration, the external intercostal muscle leads to upward and outward movement of ribs.
12. It causes an increase in volume in the thoracic cavity.
13. Thus the diaphragm becomes flattened.