🌬️ How do we breathe?

We breathe by taking air in through our nose or mouth! 🌬️ The air goes down a tube called the windpipe and fills up our lungs like balloons. Then, we blow the air back out!

Our body needs air to stay alive, just like a car needs gas to go! 🚗💨

Breathing is how our bodies get oxygen from the air! 🌍 When we inhale, air enters through our nose (where tiny hairs clean it!) or mouth, travels down the trachea (windpipe), and into our lungs.

Inside the lungs, oxygen passes into our blood, and carbon dioxide (the "used" air) goes out when we exhale. This happens automatically—you don’t even have to think about it!

💡 Fun tip: Try placing your hand on your chest—you can feel it rise and fall with each breath!

Breathing is a complex process controlled by the respiratory system. Here’s how it works:

1. Inhalation: The diaphragm (a muscle below the lungs) contracts, pulling air into the lungs through the trachea. The air branches into smaller tubes called bronchi, then into tiny air sacs called alveoli.
2. Gas Exchange: In the alveoli, oxygen diffuses into the bloodstream, while carbon dioxide (a waste product) moves from the blood into the lungs.
3. Exhalation: The diaphragm relaxes, pushing CO₂ out of the body.

🧠 Did you know? The brain monitors CO₂ levels to adjust breathing rate—like a built-in alarm system!