CBSE Class 11-science Answered
State the two stages involved in breathing. Name the components which
help in adjusting the volume of the thoracic chamber.
Asked by Topperlearning User | 18 Jul, 2014, 02:17: PM
Expert Answer
Two stages involved in breathing are
- Inspiration: Atmospheric air is drawn inside the body.
- Expiration: Alveolar air is released out of the body.
The diaphragm and internal and external intercostal muscles help in adjusting the volume of the thoracic chamber.
Answered by | 18 Jul, 2014, 04:17: PM
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