As you know respiratory system takes part in one of the three vital functions of humans beings: NUTRITION
The job of your respiratory system is very simple: To bring oxygen into your body, and remove the carbon dioxide from your body. Your body needs oxygen to survive.
How do you breathe? Take a deep breath. Feel the air rushing in? How does it feel? Cool? Crisp? Now blow out. Do you feel the warm air blowing over your lips? As you breathe in, a special organ called a diaphragm pulls your lungs down, making them bigger. This causes air to rush into your lungs. Think about this for a moment.
Check out how much you know about this system through these activities!! Enjoy!