Make use of a water bottle with water and two straws to test your lung power. Write a report on it.
Answers
Answer:
when you breathe in, your lungs fill with air just like the balloon inside the bottle did. That’s because the diaphragm expanded making room for air inside the lung. When you breathe out, your diaphragm contracts (or squeezes in) pushing all the air out of your lungs.
The same thing happened in your model! When you pulled down on the knot, the balloon inflated slightly and when let go the balloon deflated! Inside your body, you have two lungs that work together, and the diaphragm is below them. Air goes in and out of both of your lungs at the same time. This model just represents one lung.
Your lungs fill with air as you take a breath, much like the balloon inside the bottle did. The diaphragm extended, allowing air to enter the lung. Your diaphragm contracts (or squeezes in) as you exhale, forcing all the air out of your lungs.
Your model went through the same thing. The balloon expanded somewhat as you drew down on the knot, and it deflated when you let go! The diaphragm is located beneath your lungs, which operate together. Both of your lungs take in and expel air simultaneously. One lung is depicted in this model.