B11B12 Revision

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Across
  1. 2. The description used tio describe the water vapour found in expired air.
  2. 4. used to detect CO2 when it turns cloudy.
  3. 5. Topped by the epiglottis, this structure forms the start of the airway and contains vocal chords.
  4. 8. The percent of CO2 in expired air.
  5. 9. Created when Lactic acid forms after short periods of intense activity
  6. 10. The site where lactic acid is sent during recovery to be broken down and used in aerobic respiration.
  7. 11. The percent difference O2 between inspired and expired air.
Down
  1. 1. One of the uses of energy from aerobic respiration where body temperature is controlled.
  2. 3. – ventilatory muscles than lift the ribs up and out when they contract, during inspiration.
  3. 6. Cells that break down nutrient molecules to release energy without using oxygen. glucose → lactic acid
  4. 7. These conducting airways branch 24 times and end in the alveoli.