7. Push the diaphragm (balloon) in (towards the lungs) in order to deflate the lungs. (Note: This makes the chest cavity smaller and increases the pressure.) a. What happened when you pull down the larger balloon/plastic? b. What happened when you pull down the larger balloon/plastic?
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Answer:
A. As the balloon at the bottom of the model was pulled down, the diaphragm contracts and moves down and the chest cavity expands.
Explanation:
The Answer on A is same as to B