1 i.）Label the following parts of the respiratory system on the diagram: trachea, bronchi,
lungs, alveoli, and diaphragm.
ii.) Explain the role of the alveoli in the respiratory system.
2)
Explain the process of gas exchange in the alveoli.
2) The diagram shows the posi�on of the diaphragm during inhala�on and exhala�on.
Explain how the movement of the diaphragm changes the volume and pressure inside the
chest cavity during each process.
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