KINE 1020 : Semester 2 notes ALL
3 Apr 2012
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Document Summary
Nose: passageway for air, nose hair filters/captures particles that you don"t want in your lungs. It is not a perfect system, some still get in. Mouth: passageway for food and air, warms air. Pharynx (throat): common passageway for air, food, and liquid. Pleural membranes: covers the lungs and line the chest cavity. Epiglottis: covers larynx during swallowing, opens when you breath, closes when you eat. Cilia: hair-like projection, line the primary bronchus to remove microbes and debris from the interior of the lungs. Whatever particles do get through, the cilia on the trachea brushes the mucous away, upwards til it goes to the epiglottis and you swallow it, which is better than it going into the lungs. Goblet cells: secrete mucous that helps food move, mucous helps collect up dust and foreign particles, these cells do not have cilia. *if there is excessive mucous, the cilia cannot brush it all off, which results in too much mucous and congestion.
