RespExKey Spr 14 TA - Bio 365s Respiratory IntroAnatomy Gas laws Spirometry TA note Refer to pages 578-9 in the text(pp.567-8 in 4e use powerpoint

RespExKey Spr 14 TA - Bio 365s Respiratory IntroAnatomy Gas...

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Bio 365s Respiratory Intro—Anatomy, Gas laws, Spirometry TA note: Refer to pages 578-9 in the text (pp.567-8 in 4e); use powerpoint slides a. briefly explain volume displacement spirometry (can use on-line resources for further info) b. talk through the process of recording a spirogram –use the text under “Lung Volumes” for your guide c. instruct students to fill out # 1 on worksheet as you go along. d. explain that lung capacities add 2 or more volumes; talk through the 4 lung capacities e. This will be the only lecture on spirometry! Please be thorough. Spirometry Using the spirogram above and Figure 17.7 (17-8), fill in the chart regarding standard lung volumes and capacities. Lung volume or capacity Value (mL) Description 1 Tidal volume 500 mL Volume of air that moves in a single inspiration or expiration 2 Inspiratory Reserve volume 3000 Additional volume that can be inspired above tidal volume 3 Expiratory Reserve volume 1100 Maximum volume of air that can be exhaled at end of normal expiration 4 Residual volume 1200 Volume of air left in respiratory system after max expiration 1 + 2 Inspiratory capacity 3500 Tidal volume + inspiratory reserve 3+ 4 Functional residual capacity 2300 ERV + RV—amount left in lungs after normal expiration 1 + 2 + 3 Vital capacity 4600 TV + IRV + ERV = max air that can be voluntarily moved into or out of the resp system with one breath All Total Lung Capacity 5800 Vital capacity + residual volume TA note:
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