spiratory Volumes and Capacities retory volume is the term
Last updated: 5/19/2023
spiratory Volumes and Capacities retory volume is the term used for verious volumes of air moved by or associated with the lungs at a given point in the piratory cycle There are four major types of respiratory volumes tidal residual Inspiratory reserve and expiratory reserve 2231 Tidal volume TV is the amount of air that normally enters the lungs during quiet breathing which is about 500 hers Expiratory reserve volume CRV is the amount of air you can forcefully exhale past a normal tidal expiration up to 1200 ters for men Imperatory reserve volume FV is produced by a deep inhalation past a tidal inspiration This is the extra pune that can be brought into the lungs during a forced Inspiration Residual volume TV is the al le in the lungs if you exhale much as possible The residual volume makes breathing coser by preventing the alveol from colapsing Respiratory volume dependent on a variety of factors and measuring the different types of respiratory volumes can provide important cues about a person s respiratory team oure 22 39 6000 5000 4000 3000 2000 1000 Inspiratory reserve volume Tidal volume Expiratory Volume Expiratory Reserve reserve volume Inspiratory capacity Functional residual capacity 500 Figure 22 18 Respiratory Volumes and Capacities These two graphs show a respiratory volumes and b the combination of volumes that results in respiratory capacity Volume Amount ml Vital capacity Lung Volumes Pre Lab Questions Complete the table below using the reading graph and chart on the previous slide You might have to do some math volume About 1100 ml b Total lung capacity Volume Description function test Spirometry Gas diffusion Spirometer Blood gas analyzer Forced vital capacity FVC Forced expiratory volume FEV Forced expiratory flow 25 75 percent Peak expiratory flow PEF Maximum voluntary ventilation MVV Slow vital capacity SVC Total lung capacity TLC Functional residual capacity FRC Residual volume RV Total lung capacity TLC Expiratory reserve volume ERV Arterial blood gases Figure 22 19 Pulmonary Function Testing Volume of air that is exhaled after ma Inhalation Volume of air exhaled during one force breath Air flow in the middle of exhalation Rate of exhalation Volume of air that can be inspired and expired in 1 minute Volume of air that can be slowly exhaled after inhaling past the tidal volume Volume of air in the lungs after maximum inhalation Volume of air left in the lungs after normal expiration Volume of air in the lungs after maximum exhalation Maximum volume of air that the lungs can hold The volume of air that can be exhaled beyond normal exhalation Concentration of oxygen and carbon dioxide in the blood Lung Volumes and Spirometry Video