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Respiratory System (EXERCISE (Expiration (ACTIVE), 1) Becomes active, 2)…

- - - - Inspiratory Centre - Stimulates the External intercostal muscles and the diaphragm, then at exercise also the sternocleidomastoid. This increases rate and depth of inspiration
      - Expiratory Centre - Stretch reflex receptors on the lungs cause this to activate, it stimulates the internal intercostal muscles and the rectus abdominus. This increases the rate of expiration and the volume of air expired
    - - Thermoreceptors - Increase/Decrease in temperature
      - Proprioceptors - Increase/Decrease in movement
      - Baroreceptors - Increase/Decrease in blood pressure
      - Chemoreceptors - Increase/Decrease of Lactic Acid