Human Respiration

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The Tidal Volume (TV) is the quantity of air that a person is breathing in and out under a normal resting respiratory cycle. The trace for normal breathing shows a reading varying between 3000cc of air and 4000cc. This shows a value for TV of 1000cc. Normal values for TV are 500cc.

Introduction

Normal values range from 12 to 20 breaths per minute.
The Inspiratory Reserve Volume (IRV) is the quantity of air that is taken into the lungs during a maximal forced inspiration that begins at the end of a normal inspiration. The trace for vital capacity shows an IRV reading of 2300cc. The normal value for IRV is 2500cc.
The Expiratory Reserve Volume (ERV) is the quantity of air that is expelled from the lungs during a maximal forced expiration that begins at the end of a normal expiration. The trace for vital capacity shows a reading of 900cc for ERV. The normal value of ERV is 1500cc.
The Vital Capacity (VC) is the total volume of air that is expelled from the lungs during a forced maximal exhalation that occurs after a forced maximal inhalation. The trace for vital capacity shows a direct VC reading of 4100cc. The normal value for VC is 4800cc.
The depth of breathing at the start of the experiment is shown in the trace for CO2 accumulation part A. The TV reading is 1000cc. The depth of breathing at the end of the experiment is shown in the trace for CO2 accumulation part B. The TV reading is 1500cc.
The frequency of breathing at the beginning of the experiment is shown in the trace for CO2 accumulation part A. The frequency at the beginning is 10 breaths per minute. The frequency of breathing at the end of the experiment is shown is the trace for CO2 accumulation part B. ...
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