What is the function of ribs in respiration? [3 MARKS]

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Solution

Functions: 1 Mark each

1. Diaphragm and ribs help in breathing activity.
2. During inhalation, ribs move up and diaphragm moves down to increase the chest cavity space. Lungs get filled with air.
3. During exhalation, ribs move down and diaphragm moves up to its former position. This reduces chest cavity space and air is pushed out.

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