structure of the respiratory system.

Nasal cavity- The nasal cavity is where the air enters and has hair and mucus to stop the diseases in the air.

Trachea- The Trachea is also known has the wind pipe and is positioned at the front of the throat.

Right lung- The right lung is slightly bigger than the left lung, because of where the heart is positioned.

Diaphragm-  The Diaphragm is a sheet of muscles that run under the lungs to create vacuum. It controls the lungs.

Epiglottis- The Epiglottis is like a door. It stops food from entering the respiratory system.

Larynx- The air passes through the sound box (Larynx).

Bronchus- Bronchus is made of two tube one entering one lung and the other entering the other lung. It transfer oxygen into the lungs.