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Scientists: S askia and M egan. The Respiratory System. Organs of the respiratory system:. Nasal cavity-. The function of this part of the system is to filter and moisten the air coming into the body . Pharynx:.

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nasal cavity
Nasal cavity-

The function of this part of the system is to filter and moisten the air coming into the body 


Here is where the trachea which is the wind pipe and the food pipe separate. There is a small flap of cartilage called the epiglottis which prevents food from entering the trachea.


This is also called the voice box where the body generates

sound. This also protects

the trachea.


This is a tube that carries air from the throat to the lungs. The trachea is covered in tiny hairs called cilia and dust is removed by coughing.

bronchi and bronchioles
Bronchi and Bronchioles

The two tubes that the trachea

divides into is called the bronchi,

they both enter the lung.

The bronchi spilt into even smaller branches

known as bronchiole.




The alveoli are tiny sacks. The oxygen gas

is exchanged for

carbon dioxide gas inside

each of these tiny sacks.


Pleurisy- a disease when your pleura

are enflamed.

The pleura are the outside

lining of the lung. It causes a sharp

pain in your chest when you breath in.

Bronchitis- accrues

when your bronchi are enflamed.

It is a chronic disease but

can be treated.

how to keep the system healthy
How to keep the system healthy:
  • Eat healthy.
  • Have fresh plants in your house and garden.
  • Do exercise that leaves you breathless.
  • Do not smoke!