Measuring the Process

• how is lung volume measured?


  peak flow meter, vitalographs, spirometry
• what are the components of lung volume?


  tidal volume, vital capacity, inspiratory reserve volume, expiratory reserve volume, residual volume
• what are the components of lung volume?


  tidal volume, vital capacity, inspiratory reserve volume, expiratory reserve volume, residual volume
• what is tidal volume?


  vol of air that moves in and out of the lungs in each resting breath
• what is vital capacity?


  vol inhaled when strongest exhalation followed by deepest inhalation"
• what is inspiratory reserve volume?


  max vol of air inhaled above resting inhalation
• expiratory reserve volume?

  extra amount of air that can be forced out of the lungs, over tidal
• what is residual volume?


  vol left in the lungs when hardest exhalation occurs, cannot be directly measured
• ventilation rate = tidal volume x breathing rate