gcse pe revision notes respiration

The flow of air to the lungs.

The order is;

•  Nasal passage- Air is drawn in through the nose.
• Air is warmed/moistened and dust is trapped.
•  Pharynx/Larynx - Air passes through here and the TRACHEA.
• • (windpipe)
• Bronchi - Trachea devides into 2 Bronchi.
• Bronchi lead to lungs.
• Brinchioles - Bronchi devide into bronchioles.
•  Enable air to pass to alvioli.
• …