Answers

2016-06-22T23:21:51+08:00
The larger balloon at the bottom serves as the diaphragm. the two smaller balloons inside represent as the lungs. the bottle that surrounds the lungs serves as the chest cavity. the straws on the upper part that are binded with rubber band to form a main passageway serves as the trachea. as it goes down it splits into two that represents the bronchial tube or bronchi.


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