Respiratory System

Can you name the Respiratory System?

When you inhale the oxygen enters through your nose or ________.
Oxygen moves through the alveoli walls and capillaries to your _________.
You have ______ lungs. (number)
When the diaphragm relaxes it moves up deflating your _________ .
When you inhale your________ contracts, letting air in.
What is the tube in your throat that takes the air from your nose or mouth to your lungs called?
What gas do humans exhale?
What gas do humans inhale?
What surrounds your lungs?
What does the Respiratory System control?

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