A and P revision

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Across
  1. 4. rise in heart rate prior to exercise
  2. 6. muscle fibres that have high myoglobin and high capillary denisty
  3. 8. the breakdown of glucose
  4. 9. is needed for energy
  5. 11. the maximum volume of oxygen that can be utilised per minute
  6. 12. increase in the amount of capillaries due to long term effects of exercise
  7. 14. which lung volume is lower during exercise than at rest?
  8. 15. detects a rise in CO2 in the blood and decrease in PH levels
  9. 16. the proportion of blood leaving the heart
  10. 18. where the impulse is fired again before it relaxes meaning a greater force of contraction
  11. 19. ........... nervous system that speeds up heart rate
Down
  1. 1. oxyhaemoglobin dissociation curve moves to the right
  2. 2. the pacemaker of the heart
  3. 3. the last stage of the aerobic energy system
  4. 5. occurs in the blood vessels going towards the muscles during exercise
  5. 7. process of gases moving from high concentration to low concentration
  6. 10. a method of measuring energy expenditure by taking blood samples
  7. 13. spindle, proprioceptor that detects tension in the muscle
  8. 17. the amount of blood coming back to the heart