Lung

Real World Example

Imagine you're hosting a party, and you need to ensure there's a constant flow of fresh air in the room while also getting rid of the smoke from the barbecue. This situation is similar to how your lungs work. Just as you open windows to let in fresh air and use a fan to push out the smoke, your lungs absorb oxygen from the air and expel carbon dioxide from the blood. The windows represent your lungs absorbing oxygen, while the fan symbolizes the removal of carbon dioxide, ensuring the environment inside your body stays healthy and balanced.