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what happen as you pull down the ballon at the bottom if the model lung

Sagot :

the balloon represents the diaphragm. when you pull it down, air goes in the two balloons inside the container.
As you pull down the balloon at the bottom of the model. The two small balloons inflate. That means when we inhale diaphragm contracts and the lungs willhave a greater volume and the pressure will be lessure.