Travel
through the Respiratory System
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Description:
The respiratory system is essential for extracting
oxygen from the air and eliminating carbon dioxide produced by cells, operating
involuntarily to facilitate respiration. Key components, such as the lungs and
diaphragm, work together to ensure efficient gas exchange, while maintaining
overall respiratory health requires avoiding smoking and pollution and engaging
in regular exercise.
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Transcription:
The respiratory system extracts oxygen from the air, a
gas our cells need to live and grow.
The respiratory system also eliminates carbon dioxide
that cells produce after using oxygen.
This process is known as respiration.
Respiration is an automatic, involuntary process.
Air comes in through your nose and encounters little
hairs that moisten it, heat it and clean it to keep dirt out of your lungs.
The air continues down the pharynx, the larynx, and
then the trachea.
The trachea or windpipe splits into two to make the
bronchus inside the lungs.
Once the air is inside the lungs, it goes through
pathways called bronchioles.
Your lungs are the most important organs in
respiration. They take the oxygen from the air and expel the carbon dioxide that your body doesn't need.
The alveolar sacs take that oxygen and send it to the
blood to distribute through all the organs and cells of our body.
The diaphragm located under your lungs helps fill the
lungs with air (inhale).
It also expels the air your body doesn't need
(exhale).
The air we exhale contains carbon dioxide and waste.
And it is hot. You can feel the heat if you put your
hand over your mouth when you breathe out.
Smoking and pollution can harm your respiratory
system.
Exercise and breathing clean air are really important
to take good care of it.
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Questions:
1. What is the primary function of the respiratory system?2. How does air travel through the respiratory system?
3. What role does the diaphragm play in respiration?