Biod 151 Lab 2
Pharynx throat; passageway for food to the esophagus and air to the larynx Larynx voice box; passageway for air moving from pharynx to trachea; contains vocal cords Trachea a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe. Bronchi/Bronchus The two tubes formed when the trachea divides into two, one passes into each lung Bronchioles smallest branches of the bronchi Alveoli tiny sacs of lung tissue specialized for the movement of gases between air and blood Anatomical dead space the conducting zone; airways that fill with air but cannot perform gas exchange (30 percent) Alveolar Ventilation Rate measures the flow of fresh gas in and out of alveoli during a particular time interval (ml/min) Spirometer An instrument for measuring the air entering and leaving the lungs. Spirometry a measurement of breathing (or lung volumes)
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