Biology
Describe in brief the function of ribs and diaphragm in breathing.
Respiratory System
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Answer
The function of Ribs and Diaphragm is to aid respiration:
- Ribs — In breathing during inhalation, the Ribs move upwards and outward. This function increases the volume of chest cavity. As a result lungs expand and atmospheric air rushes into the lungs. During Exhalation, the Ribs move downwards and inward. This function decreases the volume of chest cavity as a result lungs contract and air rushes out of the lungs.
- Diaphragm — During inhalation, Diaphragm is pushed downwards and it becomes flattened while during exhalation, it moves upwards and becomes dome-shaped.
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