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Bell Task

Learn about Tidal Volume, Inspiratory Reserve Volume, Expiratory Reserve Volume, Residual Volume, and Spirometry Traces. Understand how these volumes change during exercise and interpret spirometry data effectively.

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Bell Task

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  1. Bell Task Team PE

  2. To be able to identify the different lung volumes during normal inspiration and expiration (2-4) • To explain the changes in lung volume during exercise (5-6) • To be able to interpret a spirometry trace and understand how the different volumes translate to the graphical data(7-8)

  3. To hear you be able to describe to each other the different lung volumes. • To see you explaining how they will be effected by exercise • To see you interpreting data on a spirometry trace with correct labels and explanations.

  4. Lung Volumes

  5. Starter (Individual) Read the article in front of you, by the end of the article you need to have definitions for the following: Tidal Volume (TV) Inspiratory Reserve Volume (IRV) Expiratory Reserve Volume (ERV) Residual Volume (RV)

  6. Spirometry Traces • A spirometer captures inspired and expired air, measuring and recording volumes. • A Spirometry trace is then produced which can be used to interpret the various volumes.

  7. Spirometry Traces- Tidal Volume Tidal Volume • The normal amount of air inhaled or exhaled per breath. • Tidal volume increases with exercise as we breath harder. • Average Tidal Volume is 500ml. • ??‘Think waves on a beach’?? Inspiratory reserve volume Tidal Volume Expiratory reserve volume

  8. Spirometry Traces- Residual Volume Residual Volume • The amount of air that is left in the lungs after maximal expiration. • There is no change during exercise. • There is always some air left in the lungs. Inspiratory reserve volume Expiratory reserve volume Residual Volume

  9. Spirometry Traces- Expiratory Reserve Volume Expiratory Reserve Volume • The amount of air that can be forced out of the lungs after a normal breath (above Tidal Volume). • Expiratory Reserve Volume decreases during exercise as tidal volume increases. • This can be as high as 3000ml. Inspiratory reserve volume Expiratory Reserve Volume Expiratory reserve volume

  10. Spirometry Traces- Inspiratory Reserve Volume Inspiratory Reserve Volume • The amount of air that can be forced into the lungs after a normal breath (above Tidal Volume). • Inspiratory Reserve Volume decreases during exercise as tidal volume increases. Inspiratory reserve volume Inspiratory Reserve Volume Expiratory reserve volume

  11. Date: 11/03/2017 • This weeks questions: • Define TV, IRV, ERV and RV • Describe how the volumes change during exercise • Explain who a spirometer works in 20 words This weeks matches: Match 1: Everton V West Brom Match 2: Hull City V Swansea Match 3: Bournmouth V West Ham MWN’s Predictions: 3-1 1-2 2-2 Point System: Correct Score = 5 points Correct Result = 2 points Correct Answer = 2 points each

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