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The respiratory system - Coggle Diagram
The respiratory system
The organs of the respiratory system and their functions
Nose
take in air. filter the air with tiny hairs.
Trachea
Takes air down to the lungs
Bronchus
A tube that carries air into a lung
Lung
Gaseous exchange
Bronchiole
Small tubules from a bronchus to carry air within a lung
Alveolus
Air sacs for gaseous exchange
Intercostal muscles
Cause the chest to expand and contract
Diaphragm
Cause the volume of the chest to increase and decrease
Gaseous exchange
It is estimated that there are around 300 million alveoli in each ling.
they have very thin walls and are surrounded by extremely thin-walled capillaries.
This movement of gas is called diffusion.
