Each day I'm breathing air in, I'm breathing air in
The air is sucked through nose and mouth
Mucus it warms and moistens, it warms and moistens
The trachea the air goes down
Yeah, the trachea divides in two
Both primary bronchus too
And you know it do, know it do
Yeah, branch off tertiary too
And then branching narrow tubes, bronchioles
Let's go respiratory system is made of your lungs
And passages that lead them oxygen to blood
It travels round your body organs, everyone
Breathe out gas carbon
And these are the lungs
And these are the lungs
That's right it's the lungs
Respiratory system
Each bronchiole's a cluster, an air sac cluster
Capillaries they do engulf
Oxygen through alveoli to capillaries
Internal respiration's done
Get out carbon dioxide removed
Body breathing out for you, make it right
Let's go respiratory system is made of your lungs
And passages that lead them oxygen to blood
It travels round your body organs, everyone
Breathe out gas carbon
And these are the lungs
And these are the lungs
That's right it's the lungs
Respiratory system
Ventilation, that is right, diaphragm flattens, it rises for life
The respiratory system
The respiratory system
Let's go respiratory system is made of your lungs
And passages that lead them oxygen to blood
It travels round your body organs, everyone
Breathe out gas carbon
And these are the lungs
Respiratory system is made of your lungs
And passages that lead them oxygen to blood
It travels round your body organs, everyone
Breathe out gas carbon
And these are the lungs
Respiratory, respiratory, respiratory system
Respiratory, respiratory, respiratory system
Respiratory, respiratory, respiratory system
That's right it's the lungs
Respiratory system

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