KIN 3515 : Unit 3 Study Guide
15 Mar 2019
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3 functions of the pulmonary system: oxygenate blood, remove co2, maintain ph. Amount of air inhaled and expired during a normal breath. Air left in lungs after maximal exhalation (can"t fully deplete lungs of air) Greatest amount of air that can be contained in the lungs. = irv + vt + erv + rv. Amount of air you expire in 1 minute. Decreases with age because abdominal contraction force/strength decreases. Volume of air in trachea and all the bronchioles. Amount of oxygen carried in the arteries minus the amount carried in the veins. The size of a person"s lung volumes and capacities are completely dependent upon their body size. Large people have large lungs and capacities and vice versa. Airway resistance = resistance to airflow: factors that effect airflow, airway diameter. Increased chest size = increased diameter = decreased resistance: decreased chest size = decreased diameter = increased resistance, basically bigger = easier, air viscosity = air thickness.
