Respiratory System

Your respiratory system is responsible for getting oxygen into your body and carbon dioxide out. This occurs when you inhale (breathe in) and exhale (breathe out).

When you breathe in, you actually take in a mixture of gases from the air around you. The air moves down your trachea, then down into one of two narrower tubes called bronchi then into smaller branching tubes called bronchioles which end in tiny air sacs called alveoli.

Respiratory system

Carbon dioxide from the blood in your capillaries diffuses into the alveoli in your lungs. It is then transported into your bronchioles, then your bronchi, and then into your trachea. From here, carbon dioxide is exhaled through your nose when you breathe out.

Glucose (Sugar) + Oxygen = Carbon Dioxide + Water + Energy

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