Nasal Cavity - When you breath in through your nose air enters this area. Air is warmed and cleaned here before being passed onto the pharynx, Pharynx - Commonly called the throat. It is a small tube that acts as a passeway for food as well as air., Larynx - Also known as the voice box, is around 5cm long and connects the pharynx to the trachea, Trachea - Also knwon as the windpipe. It contains rings of cartilage to prevent colapse., Epiglottis - A small flap of cartilage at the back of the tongue that prevents food and drink travelling into the trachea, Lungs - An organ that allows air to be drawn into the body and hangs suspended in the plural cavity, Bronchi - Tubes that carry air from the trachea into the left and right lung, Bronchioles - Smaller airways that extend from the bronchi to the alveoli, Alveoli - Air sacs where oxygen diffuses from the air into the bloodstream. We have approximately 300 million., Diaphragm - A flat muscle located beneath the lungs and separates the chest from the abdomen., Internal and external intercostal muscles - Lie between the ribs and contract to allow ribs to push air in and out.,

Respiratory System

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