MCQOPTIONS
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| 1. |
What will happen when diaphragm relaxes and curves upwards? |
| A. | Air is forced out of the lungs. |
| B. | The rib cage goes up and outward. |
| C. | The volume of the thoracic cavity increases. |
| D. | Air pressure inside the thoracic cavity decreases. |
| Answer» B. The rib cage goes up and outward. | |