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What happens to the volume of thoracic c...

What happens to the volume of thoracic cavity when muscle fibres of diaphragm contract ?

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### Step-by-Step Solution: 1. **Understanding the Diaphragm's Role**: The diaphragm is a dome-shaped muscle located at the base of the thoracic cavity. It plays a crucial role in the process of breathing. 2. **Contraction of the Diaphragm**: When the diaphragm contracts, it moves downward. This movement is essential for the process of inspiration (breathing in). 3. **Effect on the Thoracic Cavity**: As the diaphragm contracts and moves downward, it increases the space within the thoracic cavity. ...
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