Air can enter the body by the mouth or the nose. Air then goes down the windpipe to the lungs where it can enter the bloodstream.
To oxygenise the body.
lungs
Diaphram
Two air passages which allow air to enter the body are the cilia and aveoli !!!
To allow the air to enter the body. The air can enter through either the nose or through the mouth.
To allow the air to enter the body. The air can enter through either the nose or through the mouth.
Spiracles
Pollution enters the system by respiration. When you breathe in your body uses the oxygen in the "air". But when pollution is in the "air", your body takes that in and enters the Ovules of the lung and enter your blood stream.
As the diaphragm contracts, air enters the body through the nose and mouth.
THE NOSE AND OF COURSE THE MOUTH..................
Mouth and nose